51031107780 has 96 divisors (see below), whose sum is σ = 143644354560. Its totient is φ = 13536378240.

The previous prime is 51031107733. The next prime is 51031107811. The reversal of 51031107780 is 8770113015.

It is a super-2 number, since 2×51031107780² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9223615 + ... + 9229145.

It is an arithmetic number, because the mean of its divisors is an integer number (1496295360).

Almost surely, 2^51031107780 is an apocalyptic number.

It is an amenable number.

51031107780 is an abundant number, since it is smaller than the sum of its proper divisors (92613246780).

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

51031107780 is a wasteful number, since it uses less digits than its factorization.

51031107780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6329 (or 6327 counting only the distinct ones).

The product of its (nonzero) digits is 5880, while the sum is 33.

The spelling of 51031107780 in words is "fifty-one billion, thirty-one million, one hundred seven thousand, seven hundred eighty".