3658195872 has 72 divisors (see below), whose sum is σ = 10788313536. Its totient is φ = 1219396032.

The previous prime is 3658195859. The next prime is 3658195907. The reversal of 3658195872 is 2785918563.

3658195872 is a `hidden beast` number, since 3 + 6 + 58 + 1 + 9 + 587 + 2 = 666.

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

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 227448 + ... + 242999.

It is an arithmetic number, because the mean of its divisors is an integer number (149837688).

Almost surely, 2^3658195872 is an apocalyptic number.

3658195872 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

3658195872 is an abundant number, since it is smaller than the sum of its proper divisors (7130117664).

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

3658195872 is an equidigital number, since it uses as much as digits as its factorization.

3658195872 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 470472 (or 470452 counting only the distinct ones).

The product of its digits is 3628800, while the sum is 54.

The square root of 3658195872 is about 60483.0213531037. The cubic root of 3658195872 is about 1540.8332860308.

The spelling of 3658195872 in words is "three billion, six hundred fifty-eight million, one hundred ninety-five thousand, eight hundred seventy-two".