51030401136 has 80 divisors (see below), whose sum is σ = 154875504000. Its totient is φ = 14274236160.

The previous prime is 51030401129. The next prime is 51030401161. The reversal of 51030401136 is 63110403015.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3710386 + ... + 3724113.

It is an arithmetic number, because the mean of its divisors is an integer number (1935943800).

Almost surely, 2^51030401136 is an apocalyptic number.

It is an amenable number.

51030401136 is an abundant number, since it is smaller than the sum of its proper divisors (103845102864).

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

51030401136 is a wasteful number, since it uses less digits than its factorization.

51030401136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7434534 (or 7434528 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 24.

The spelling of 51030401136 in words is "fifty-one billion, thirty million, four hundred one thousand, one hundred thirty-six".