51371878110 has 32 divisors (see below), whose sum is σ = 140905723392. Its totient is φ = 11742143520.

The previous prime is 51371878097. The next prime is 51371878133. The reversal of 51371878110 is 1187817315.

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 pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 122313786 + ... + 122314205.

It is an arithmetic number, because the mean of its divisors is an integer number (4403303856).

Almost surely, 2^51371878110 is an apocalyptic number.

51371878110 is an abundant number, since it is smaller than the sum of its proper divisors (89533845282).

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

51371878110 is a wasteful number, since it uses less digits than its factorization.

51371878110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 244628008.

The product of its (nonzero) digits is 47040, while the sum is 42.

The spelling of 51371878110 in words is "fifty-one billion, three hundred seventy-one million, eight hundred seventy-eight thousand, one hundred ten".