52691257758 has 16 divisors (see below), whose sum is σ = 105407473536. Its totient is φ = 17559592920.

The previous prime is 52691257757. The next prime is 52691257769. The reversal of 52691257758 is 85775219625.

It is a junction number, because it is equal to n+sod(n) for n = 52691257698 and 52691257707.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (52691257753) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1012416 + ... + 1063187.

It is an arithmetic number, because the mean of its divisors is an integer number (6587967096).

Almost surely, 2^52691257758 is an apocalyptic number.

52691257758 is an abundant number, since it is smaller than the sum of its proper divisors (52716215778).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

52691257758 is a wasteful number, since it uses less digits than its factorization.

52691257758 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2079839.

The product of its digits is 10584000, while the sum is 57.

The spelling of 52691257758 in words is "fifty-two billion, six hundred ninety-one million, two hundred fifty-seven thousand, seven hundred fifty-eight".