52406520769 has 8 divisors (see below), whose sum is σ = 52524255168. Its totient is φ = 52288920240.

The previous prime is 52406520757. The next prime is 52406520773. The reversal of 52406520769 is 96702560425.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-52406520769 is a prime.

It is a super-2 number, since 2×52406520769² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (52406520709) 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, 771939 + ... + 837079.

It is an arithmetic number, because the mean of its divisors is an integer number (6565531896).

Almost surely, 2^52406520769 is an apocalyptic number.

It is an amenable number.

52406520769 is a deficient number, since it is larger than the sum of its proper divisors (117734399).

52406520769 is an equidigital number, since it uses as much as digits as its factorization.

52406520769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66935.

The product of its (nonzero) digits is 907200, while the sum is 46.

The spelling of 52406520769 in words is "fifty-two billion, four hundred six million, five hundred twenty thousand, seven hundred sixty-nine".