7489523664 has 120 divisors (see below), whose sum is σ = 25215419840. Its totient is φ = 2027234304.

The previous prime is 7489523659. The next prime is 7489523687. The reversal of 7489523664 is 4663259847.

It is a self number, because there is not a number n which added to its sum of digits gives 7489523664.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 176377 + ... + 214680.

Almost surely, 2^7489523664 is an apocalyptic number.

It is an amenable number.

7489523664 is an abundant number, since it is smaller than the sum of its proper divisors (17725896176).

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

7489523664 is a wasteful number, since it uses less digits than its factorization.

7489523664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391097 (or 391088 counting only the distinct ones).

The product of its digits is 8709120, while the sum is 54.

The square root of 7489523664 is about 86542.0340874884. The cubic root of 7489523664 is about 1956.5219854706.

The spelling of 7489523664 in words is "seven billion, four hundred eighty-nine million, five hundred twenty-three thousand, six hundred sixty-four".