51595640746 has 16 divisors (see below), whose sum is σ = 85285103904. Its totient is φ = 23259572784.

The previous prime is 51595640729. The next prime is 51595640773. The reversal of 51595640746 is 64704659515.

It is a happy number.

It is a super-2 number, since 2×51595640746² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51595640693 and 51595640702.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23073856 + ... + 23076091.

It is an arithmetic number, because the mean of its divisors is an integer number (5330318994).

Almost surely, 2^51595640746 is an apocalyptic number.

51595640746 is a deficient number, since it is larger than the sum of its proper divisors (33689463158).

51595640746 is a wasteful number, since it uses less digits than its factorization.

51595640746 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46150005.

The product of its (nonzero) digits is 4536000, while the sum is 52.

The spelling of 51595640746 in words is "fifty-one billion, five hundred ninety-five million, six hundred forty thousand, seven hundred forty-six".