51087634213 has 24 divisors (see below), whose sum is σ = 64280538560. Its totient is φ = 39743827200.

The previous prime is 51087634187. The next prime is 51087634217. The reversal of 51087634213 is 31243678015.

It is not a de Polignac number, because 51087634213 - 2⁵ = 51087634181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51087634217) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 475573 + ... + 573013.

Almost surely, 2^51087634213 is an apocalyptic number.

It is an amenable number.

51087634213 is a deficient number, since it is larger than the sum of its proper divisors (13192904347).

51087634213 is a wasteful number, since it uses less digits than its factorization.

51087634213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98089 (or 98078 counting only the distinct ones).

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 51087634213 in words is "fifty-one billion, eighty-seven million, six hundred thirty-four thousand, two hundred thirteen".