12612779937400 has 24 divisors (see below), whose sum is σ = 29324713354920. Its totient is φ = 5045111974880.

The previous prime is 12612779937377. The next prime is 12612779937413. The reversal of 12612779937400 is 473997721621.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 31531949644 + ... + 31531950043.

It is an arithmetic number, because the mean of its divisors is an integer number (1221863056455).

Almost surely, 2^{12612779937400} is an apocalyptic number.

12612779937400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12612779937400 is an abundant number, since it is smaller than the sum of its proper divisors (16711933417520).

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

12612779937400 is a wasteful number, since it uses less digits than its factorization.

12612779937400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63063899703 (or 63063899694 counting only the distinct ones).

The product of its (nonzero) digits is 8001504, while the sum is 58.

The spelling of 12612779937400 in words is "twelve trillion, six hundred twelve billion, seven hundred seventy-nine million, nine hundred thirty-seven thousand, four hundred".