51829764722 has 6 divisors (see below), whose sum is σ = 77745130029. Its totient is φ = 25914721380.

The previous prime is 51829764719. The next prime is 51829764731. The reversal of 51829764722 is 22746792815.

It can be written as a sum of positive squares in 2 ways, for example, as 46294255921 + 5535508801 = 215161^2 + 74401^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=160981.

It is a super-2 number, since 2×51829764722² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 241472 + ... + 402452.

Almost surely, 2^51829764722 is an apocalyptic number.

51829764722 is a deficient number, since it is larger than the sum of its proper divisors (25915365307).

51829764722 is an frugal number, since it uses more digits than its factorization.

51829764722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321964 (or 160983 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 53.

The spelling of 51829764722 in words is "fifty-one billion, eight hundred twenty-nine million, seven hundred sixty-four thousand, seven hundred twenty-two".