53989540764 has 12 divisors (see below), whose sum is σ = 125975595144. Its totient is φ = 17996513584.

The previous prime is 53989540753. The next prime is 53989540777. The reversal of 53989540764 is 46704598935.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 53989540698 and 53989540707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2249564187 + ... + 2249564210.

It is an arithmetic number, because the mean of its divisors is an integer number (10497966262).

Almost surely, 2^53989540764 is an apocalyptic number.

It is an amenable number.

53989540764 is an abundant number, since it is smaller than the sum of its proper divisors (71986054380).

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

53989540764 is a wasteful number, since it uses less digits than its factorization.

53989540764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4499128404 (or 4499128402 counting only the distinct ones).

The product of its (nonzero) digits is 32659200, while the sum is 60.

The spelling of 53989540764 in words is "fifty-three billion, nine hundred eighty-nine million, five hundred forty thousand, seven hundred sixty-four".