51100070157 has 8 divisors (see below), whose sum is σ = 75703807680. Its totient is φ = 34066713420.

The previous prime is 51100070081. The next prime is 51100070167. The reversal of 51100070157 is 75107000115.

It is not a de Polignac number, because 51100070157 - 2¹⁵ = 51100037389 is a prime.

It is a super-2 number, since 2×51100070157² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1892595191 = 51100070157 / (5 + 1 + 1 + 0 + 0 + 0 + 7 + 0 + 1 + 5 + 7).

It is a self number, because there is not a number n which added to its sum of digits gives 51100070157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51100070167) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 946297569 + ... + 946297622.

It is an arithmetic number, because the mean of its divisors is an integer number (9462975960).

Almost surely, 2^51100070157 is an apocalyptic number.

It is an amenable number.

51100070157 is a deficient number, since it is larger than the sum of its proper divisors (24603737523).

51100070157 is a wasteful number, since it uses less digits than its factorization.

51100070157 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892595200 (or 1892595194 counting only the distinct ones).

The product of its (nonzero) digits is 1225, while the sum is 27.

The spelling of 51100070157 in words is "fifty-one billion, one hundred million, seventy thousand, one hundred fifty-seven".