64670290504 has 8 divisors (see below), whose sum is σ = 121256794710. Its totient is φ = 32335145248.

The previous prime is 64670290499. The next prime is 64670290507. The reversal of 64670290504 is 40509207646.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 64311945604 + 358344900 = 253598^2 + 18930^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (64670290507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4041893149 + ... + 4041893164.

Almost surely, 2^64670290504 is an apocalyptic number.

It is an amenable number.

64670290504 is a deficient number, since it is larger than the sum of its proper divisors (56586504206).

64670290504 is a wasteful number, since it uses less digits than its factorization.

64670290504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8083786319 (or 8083786315 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 64670290504 in words is "sixty-four billion, six hundred seventy million, two hundred ninety thousand, five hundred four".