51215104513516 has 12 divisors (see below), whose sum is σ = 89646614517880. Its totient is φ = 25601786079840.

The previous prime is 51215104513487. The next prime is 51215104513541. The reversal of 51215104513516 is 61531540151215.

51215104513516 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1441524246 + ... + 1441559773.

Almost surely, 2^{51215104513516} is an apocalyptic number.

It is an amenable number.

51215104513516 is a deficient number, since it is larger than the sum of its proper divisors (38431510004364).

51215104513516 is a wasteful number, since it uses less digits than its factorization.

51215104513516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2883088464 (or 2883088462 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 40.

The spelling of 51215104513516 in words is "fifty-one trillion, two hundred fifteen billion, one hundred four million, five hundred thirteen thousand, five hundred sixteen".