5101978812 has 48 divisors (see below), whose sum is σ = 13612945920. Its totient is φ = 1456886592.

The previous prime is 5101978807. The next prime is 5101978837. The reversal of 5101978812 is 2188791015.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 141489 + ... + 173847.

It is an arithmetic number, because the mean of its divisors is an integer number (283603040).

Almost surely, 2^5101978812 is an apocalyptic number.

It is an amenable number.

5101978812 is an abundant number, since it is smaller than the sum of its proper divisors (8510967108).

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

5101978812 is a wasteful number, since it uses less digits than its factorization.

5101978812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34250 (or 34248 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 42.

The square root of 5101978812 is about 71428.1373969670. The cubic root of 5101978812 is about 1721.5232148368.

The spelling of 5101978812 in words is "five billion, one hundred one million, nine hundred seventy-eight thousand, eight hundred twelve".