51240134075 has 48 divisors (see below), whose sum is σ = 72431509920. Its totient is φ = 35684167680.

The previous prime is 51240134063. The next prime is 51240134119. The reversal of 51240134075 is 57043104215.

It is not a de Polignac number, because 51240134075 - 2³⁴ = 34060264891 is a prime.

It is a super-2 number, since 2×51240134075² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 342059 + ... + 468491.

It is an arithmetic number, because the mean of its divisors is an integer number (1508989790).

Almost surely, 2^51240134075 is an apocalyptic number.

51240134075 is a deficient number, since it is larger than the sum of its proper divisors (21191375845).

51240134075 is a wasteful number, since it uses less digits than its factorization.

51240134075 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126528 (or 126523 counting only the distinct ones).

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 51240134075 in words is "fifty-one billion, two hundred forty million, one hundred thirty-four thousand, seventy-five".