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74958822481 is a prime number
BaseRepresentation
bin100010111001111100…
…1001101110001010001
321011111000020201111111
41011303321031301101
52212003424304411
654234031413321
75262356323024
oct1056371156121
9234430221444
1074958822481
1129876334874
121263b684241
1370b78b973a
1438b14391bb
151e3ab31721
hex1173e4dc51

74958822481 has 2 divisors, whose sum is σ = 74958822482. Its totient is φ = 74958822480.

The previous prime is 74958822427. The next prime is 74958822511. The reversal of 74958822481 is 18422885947.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 68456012881 + 6502809600 = 261641^2 + 80640^2 .

It is an emirp because it is prime and its reverse (18422885947) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74958822481 - 27 = 74958822353 is a prime.

It is a super-2 number, since 2×749588224812 (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (74958822881) 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, 37479411240 + 37479411241.

It is an arithmetic number, because the mean of its divisors is an integer number (37479411241).

Almost surely, 274958822481 is an apocalyptic number.

It is an amenable number.

74958822481 is a deficient number, since it is larger than the sum of its proper divisors (1).

74958822481 is an equidigital number, since it uses as much as digits as its factorization.

74958822481 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10321920, while the sum is 58.

The spelling of 74958822481 in words is "seventy-four billion, nine hundred fifty-eight million, eight hundred twenty-two thousand, four hundred eighty-one".