51595573778 has 16 divisors (see below), whose sum is σ = 88846195200. Its totient is φ = 22013228736.

The previous prime is 51595573769. The next prime is 51595573877. The reversal of 51595573778 is 87737559515.

It is a self number, because there is not a number n which added to its sum of digits gives 51595573778.

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, 8260103 + ... + 8266346.

It is an arithmetic number, because the mean of its divisors is an integer number (5552887200).

Almost surely, 2^51595573778 is an apocalyptic number.

51595573778 is a deficient number, since it is larger than the sum of its proper divisors (37250621422).

51595573778 is a wasteful number, since it uses less digits than its factorization.

51595573778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16526681.

The product of its digits is 46305000, while the sum is 62.

The spelling of 51595573778 in words is "fifty-one billion, five hundred ninety-five million, five hundred seventy-three thousand, seven hundred seventy-eight".