12851555331 has 64 divisors (see below), whose sum is σ = 19836334080. Its totient is φ = 7347179520.

The previous prime is 12851555303. The next prime is 12851555351. The reversal of 12851555331 is 13355515821.

It is not a de Polignac number, because 12851555331 - 2⁶ = 12851555267 is a prime.

It is a super-2 number, since 2×12851555331² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12851555331.

It is not an unprimeable number, because it can be changed into a prime (12851555351) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5195511 + ... + 5197983.

It is an arithmetic number, because the mean of its divisors is an integer number (309942720).

Almost surely, 2^12851555331 is an apocalyptic number.

12851555331 is a deficient number, since it is larger than the sum of its proper divisors (6984778749).

12851555331 is a wasteful number, since it uses less digits than its factorization.

12851555331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716.

The product of its digits is 90000, while the sum is 39.

The spelling of 12851555331 in words is "twelve billion, eight hundred fifty-one million, five hundred fifty-five thousand, three hundred thirty-one".