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989523175049 is a prime number
BaseRepresentation
bin11100110011001000010…
…11010110011010001001
310111121010120102120111022
432121210023112122021
5112203020413100144
62034325231442225
7131330210131613
oct16314413263211
93447116376438
10989523175049
11351722043282
1213b939386375
137240887b936
1435c70c41db3
151ab16abbcee
hexe6642d6689

989523175049 has 2 divisors, whose sum is σ = 989523175050. Its totient is φ = 989523175048.

The previous prime is 989523175021. The next prime is 989523175061. The reversal of 989523175049 is 940571325989.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 742009960000 + 247513215049 = 861400^2 + 497507^2 .

It is a cyclic number.

It is not a de Polignac number, because 989523175049 - 224 = 989506397833 is a prime.

It is a super-2 number, since 2×9895231750492 (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 989523174982 and 989523175000.

It is not a weakly prime, because it can be changed into another prime (989523775049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 494761587524 + 494761587525.

It is an arithmetic number, because the mean of its divisors is an integer number (494761587525).

Almost surely, 2989523175049 is an apocalyptic number.

It is an amenable number.

989523175049 is a deficient number, since it is larger than the sum of its proper divisors (1).

989523175049 is an equidigital number, since it uses as much as digits as its factorization.

989523175049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 24494400, while the sum is 62.

The spelling of 989523175049 in words is "nine hundred eighty-nine billion, five hundred twenty-three million, one hundred seventy-five thousand, forty-nine".