3731258664 has 72 divisors (see below), whose sum is σ = 11755379610. Its totient is φ = 1066072896.

The previous prime is 3731258653. The next prime is 3731258677. The reversal of 3731258664 is 4668521373.

3731258664 is a `hidden beast` number, since 3 + 7 + 3 + 1 + 2 + 586 + 64 = 666.

It can be written as a sum of positive squares in only one way, i.e., 3703696164 + 27562500 = 60858^2 + 5250^2 .

It is a tau number, because it is divible by the number of its divisors (72).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 525279 + ... + 532334.

Almost surely, 2^3731258664 is an apocalyptic number.

It is an amenable number.

3731258664 is an abundant number, since it is smaller than the sum of its proper divisors (8024120946).

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

3731258664 is a wasteful number, since it uses less digits than its factorization.

3731258664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1057639 (or 1057625 counting only the distinct ones).

The product of its digits is 725760, while the sum is 45.

The square root of 3731258664 is about 61084.0295330948. The cubic root of 3731258664 is about 1551.0237654224.

The spelling of 3731258664 in words is "three billion, seven hundred thirty-one million, two hundred fifty-eight thousand, six hundred sixty-four".