12899265120 has 192 divisors, whose sum is σ = 51597181440. Its totient is φ = 2948396544.

The previous prime is 12899265109. The next prime is 12899265131. The reversal of 12899265120 is 2156299821.

It is a happy number.

12899265120 is a `hidden beast` number, since 1 + 28 + 99 + 26 + 512 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (12899265109) and next prime (12899265131).

It is a super-2 number, since 2×12899265120² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 183042 + ... + 243521.

It is an arithmetic number, because the mean of its divisors is an integer number (268735320).

Almost surely, 2^12899265120 is an apocalyptic number.

12899265120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12899265120 is an abundant number, since it is smaller than the sum of its proper divisors (38697916320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12899265120 is a wasteful number, since it uses less digits than its factorization.

12899265120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426594 (or 426580 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 12899265120 in words is "twelve billion, eight hundred ninety-nine million, two hundred sixty-five thousand, one hundred twenty".