12637851012 has 60 divisors (see below), whose sum is σ = 33048601740. Its totient is φ = 4211244864.

The previous prime is 12637850989. The next prime is 12637851013. The reversal of 12637851012 is 21015873621.

12637851012 is a `hidden beast` number, since 1 + 2 + 63 + 78 + 510 + 12 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 11023740036 + 1614110976 = 104994^2 + 40176^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (12637851013) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1677478 + ... + 1684994.

It is an arithmetic number, because the mean of its divisors is an integer number (550810029).

Almost surely, 2^12637851012 is an apocalyptic number.

12637851012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12637851012 is an abundant number, since it is smaller than the sum of its proper divisors (20410750728).

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

12637851012 is a wasteful number, since it uses less digits than its factorization.

12637851012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12722 (or 12711 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The spelling of 12637851012 in words is "twelve billion, six hundred thirty-seven million, eight hundred fifty-one thousand, twelve".