51071700105 has 24 divisors (see below), whose sum is σ = 88534068480. Its totient is φ = 27235228320.

The previous prime is 51071700089. The next prime is 51071700133. The reversal of 51071700105 is 50100717015.

51071700105 is a `hidden beast` number, since 510 + 71 + 70 + 0 + 10 + 5 = 666.

It is not a de Polignac number, because 51071700105 - 2⁴ = 51071700089 is a prime.

It is a super-2 number, since 2×51071700105² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 383656 + ... + 499334.

It is an arithmetic number, because the mean of its divisors is an integer number (3688919520).

Almost surely, 2^51071700105 is an apocalyptic number.

It is an amenable number.

51071700105 is a deficient number, since it is larger than the sum of its proper divisors (37462368375).

51071700105 is a wasteful number, since it uses less digits than its factorization.

51071700105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 125501 (or 125498 counting only the distinct ones).

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

The spelling of 51071700105 in words is "fifty-one billion, seventy-one million, seven hundred thousand, one hundred five".