12887251936 has 24 divisors (see below), whose sum is σ = 27323453304. Its totient is φ = 5947962240.

The previous prime is 12887251933. The next prime is 12887251943. The reversal of 12887251936 is 63915278821.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12887251933) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15489070 + ... + 15489901.

It is an arithmetic number, because the mean of its divisors is an integer number (1138477221).

Almost surely, 2^12887251936 is an apocalyptic number.

12887251936 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

12887251936 is an abundant number, since it is smaller than the sum of its proper divisors (14436201368).

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

12887251936 is a wasteful number, since it uses less digits than its factorization.

12887251936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30978994 (or 30978986 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 52.

The spelling of 12887251936 in words is "twelve billion, eight hundred eighty-seven million, two hundred fifty-one thousand, nine hundred thirty-six".