52120137794 has 32 divisors (see below), whose sum is σ = 81790767360. Its totient is φ = 24889921408.

The previous prime is 52120137791. The next prime is 52120137809. The reversal of 52120137794 is 49773102125.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (52120137791) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 725504 + ... + 794100.

It is an arithmetic number, because the mean of its divisors is an integer number (2555961480).

Almost surely, 2^52120137794 is an apocalyptic number.

52120137794 is a deficient number, since it is larger than the sum of its proper divisors (29670629566).

52120137794 is a wasteful number, since it uses less digits than its factorization.

52120137794 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68842.

The product of its (nonzero) digits is 105840, while the sum is 41.

The spelling of 52120137794 in words is "fifty-two billion, one hundred twenty million, one hundred thirty-seven thousand, seven hundred ninety-four".