12932427285 has 24 divisors (see below), whose sum is σ = 22452823224. Its totient is φ = 6886028160.

The previous prime is 12932427271. The next prime is 12932427307. The reversal of 12932427285 is 58272423921.

12932427285 is a `hidden beast` number, since 1 + 29 + 324 + 27 + 285 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 188952516 + 12743474769 = 13746^2 + 112887^2 .

It is not a de Polignac number, because 12932427285 - 2⁸ = 12932427029 is a prime.

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

It is a self number, because there is not a number n which added to its sum of digits gives 12932427285.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 206826 + ... + 261995.

It is an arithmetic number, because the mean of its divisors is an integer number (935534301).

Almost surely, 2^12932427285 is an apocalyptic number.

12932427285 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12932427285 is a deficient number, since it is larger than the sum of its proper divisors (9520395939).

12932427285 is a wasteful number, since it uses less digits than its factorization.

12932427285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 469445 (or 469442 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The spelling of 12932427285 in words is "twelve billion, nine hundred thirty-two million, four hundred twenty-seven thousand, two hundred eighty-five".