51202071615 has 16 divisors (see below), whose sum is σ = 83921445216. Its totient is φ = 26641728000.

The previous prime is 51202071611. The next prime is 51202071623. The reversal of 51202071615 is 51617020215.

It is not a de Polignac number, because 51202071615 - 2² = 51202071611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51202071611) by changing a digit.

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, 41627086 + ... + 41628315.

It is an arithmetic number, because the mean of its divisors is an integer number (5245090326).

Almost surely, 2^51202071615 is an apocalyptic number.

51202071615 is a deficient number, since it is larger than the sum of its proper divisors (32719373601).

51202071615 is a wasteful number, since it uses less digits than its factorization.

51202071615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83255450.

The product of its (nonzero) digits is 4200, while the sum is 30.

The spelling of 51202071615 in words is "fifty-one billion, two hundred two million, seventy-one thousand, six hundred fifteen".