51215222051142 has 16 divisors (see below), whose sum is σ = 102500650044480. Its totient is φ = 17060039693352.

The previous prime is 51215222051089. The next prime is 51215222051171. The reversal of 51215222051142 is 24115022251215.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2925238108 + ... + 2925255615.

It is an arithmetic number, because the mean of its divisors is an integer number (6406290627780).

Almost surely, 2^{51215222051142} is an apocalyptic number.

51215222051142 is an abundant number, since it is smaller than the sum of its proper divisors (51285427993338).

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

51215222051142 is a wasteful number, since it uses less digits than its factorization.

51215222051142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5850495187.

The product of its (nonzero) digits is 16000, while the sum is 33.

The spelling of 51215222051142 in words is "fifty-one trillion, two hundred fifteen billion, two hundred twenty-two million, fifty-one thousand, one hundred forty-two".