51118864360501 has 32 divisors (see below), whose sum is σ = 59454480384000. Its totient is φ = 43042559645952.

The previous prime is 51118864360489. The next prime is 51118864360511. The reversal of 51118864360501 is 10506346881115.

It is a cyclic number.

It is not a de Polignac number, because 51118864360501 - 2⁷ = 51118864360373 is a prime.

It is a super-2 number, since 2×51118864360501² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51118864360511) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4274503960 + ... + 4274515918.

It is an arithmetic number, because the mean of its divisors is an integer number (1857952512000).

Almost surely, 2^{51118864360501} is an apocalyptic number.

It is an amenable number.

51118864360501 is a deficient number, since it is larger than the sum of its proper divisors (8335616023499).

51118864360501 is a wasteful number, since it uses less digits than its factorization.

51118864360501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18601.

The product of its (nonzero) digits is 691200, while the sum is 49.

The spelling of 51118864360501 in words is "fifty-one trillion, one hundred eighteen billion, eight hundred sixty-four million, three hundred sixty thousand, five hundred one".