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12444802589 is a prime number
BaseRepresentation
bin10111001011100010…
…01001111000011101
31012010022002110210102
423211301021320131
5200441332140324
65414515150445
7620252035202
oct134561117035
935108073712
1012444802589
11530684841a
1224b38a5425
13123436191b
14860b25ca9
154cc833dae
hex2e5c49e1d

12444802589 has 2 divisors, whose sum is σ = 12444802590. Its totient is φ = 12444802588.

The previous prime is 12444802547. The next prime is 12444802603. The reversal of 12444802589 is 98520844421.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7693044100 + 4751758489 = 87710^2 + 68933^2 .

It is a cyclic number.

It is not a de Polignac number, because 12444802589 - 232 = 8149835293 is a prime.

It is a super-2 number, since 2×124448025892 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12444802289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6222401294 + 6222401295.

It is an arithmetic number, because the mean of its divisors is an integer number (6222401295).

Almost surely, 212444802589 is an apocalyptic number.

It is an amenable number.

12444802589 is a deficient number, since it is larger than the sum of its proper divisors (1).

12444802589 is an equidigital number, since it uses as much as digits as its factorization.

12444802589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 737280, while the sum is 47.

The spelling of 12444802589 in words is "twelve billion, four hundred forty-four million, eight hundred two thousand, five hundred eighty-nine".