3638047597947 has 96 divisors (see below), whose sum is σ = 6100749398016. Its totient is φ = 2046239712000.

The previous prime is 3638047597931. The next prime is 3638047597981. The reversal of 3638047597947 is 7497957408363.

3638047597947 is a `hidden beast` number, since 3 + 6 + 3 + 80 + 475 + 9 + 79 + 4 + 7 = 666.

3638047597947 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3638047597947 - 2⁴ = 3638047597931 is a prime.

It is a super-2 number, since 2×3638047597947² (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3638047597907) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1437394072 + ... + 1437396602.

It is an arithmetic number, because the mean of its divisors is an integer number (63549472896).

Almost surely, 2^{3638047597947} is an apocalyptic number.

3638047597947 is a deficient number, since it is larger than the sum of its proper divisors (2462701800069).

3638047597947 is a wasteful number, since it uses less digits than its factorization.

3638047597947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3881 (or 3878 counting only the distinct ones).

The product of its (nonzero) digits is 960180480, while the sum is 72.

The spelling of 3638047597947 in words is "three trillion, six hundred thirty-eight billion, forty-seven million, five hundred ninety-seven thousand, nine hundred forty-seven".