51200701615 has 16 divisors (see below), whose sum is σ = 72639420480. Its totient is φ = 33898394880.

The previous prime is 51200701597. The next prime is 51200701661. The reversal of 51200701615 is 51610700215.

It is not a de Polignac number, because 51200701615 - 2⁵ = 51200701583 is a prime.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 25221006 + ... + 25223035.

It is an arithmetic number, because the mean of its divisors is an integer number (4539963780).

Almost surely, 2^51200701615 is an apocalyptic number.

51200701615 is a deficient number, since it is larger than the sum of its proper divisors (21438718865).

51200701615 is a wasteful number, since it uses less digits than its factorization.

51200701615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50444082.

The product of its (nonzero) digits is 2100, while the sum is 28.

The spelling of 51200701615 in words is "fifty-one billion, two hundred million, seven hundred one thousand, six hundred fifteen".