51513058645670 has 16 divisors (see below), whose sum is σ = 97603690065840. Its totient is φ = 19520738013024.

The previous prime is 51513058645667. The next prime is 51513058645679. The reversal of 51513058645670 is 7654685031515.

It is a super-2 number, since 2×51513058645670² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51513058645679) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135560680457 + ... + 135560680836.

It is an arithmetic number, because the mean of its divisors is an integer number (6100230629115).

Almost surely, 2^{51513058645670} is an apocalyptic number.

51513058645670 is a deficient number, since it is larger than the sum of its proper divisors (46090631420170).

51513058645670 is a wasteful number, since it uses less digits than its factorization.

51513058645670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271121361319.

The product of its (nonzero) digits is 15120000, while the sum is 56.

The spelling of 51513058645670 in words is "fifty-one trillion, five hundred thirteen billion, fifty-eight million, six hundred forty-five thousand, six hundred seventy".