51413911400 has 48 divisors (see below), whose sum is σ = 121792790700. Its totient is φ = 20177530880.

The previous prime is 51413911391. The next prime is 51413911429. The reversal of 51413911400 is 411931415.

It can be written as a sum of positive squares in 6 ways, for example, as 36777267076 + 14636644324 = 191774^2 + 120982^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2414585 + ... + 2435784.

Almost surely, 2^51413911400 is an apocalyptic number.

51413911400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51413911400 is an abundant number, since it is smaller than the sum of its proper divisors (70378879300).

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

51413911400 is a wasteful number, since it uses less digits than its factorization.

51413911400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4850438 (or 4850429 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 29.

The spelling of 51413911400 in words is "fifty-one billion, four hundred thirteen million, nine hundred eleven thousand, four hundred".