387872724465 has 48 divisors (see below), whose sum is σ = 680849402688. Its totient is φ = 204241984128.

The previous prime is 387872724443. The next prime is 387872724511. The reversal of 387872724465 is 564427278783.

387872724465 is a `hidden beast` number, since 3 + 87 + 8 + 72 + 7 + 24 + 465 = 666.

It is not a de Polignac number, because 387872724465 - 2⁶ = 387872724401 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5932282 + ... + 5997308.

It is an arithmetic number, because the mean of its divisors is an integer number (14184362556).

Almost surely, 2^387872724465 is an apocalyptic number.

It is an amenable number.

387872724465 is a deficient number, since it is larger than the sum of its proper divisors (292976678223).

387872724465 is a wasteful number, since it uses less digits than its factorization.

387872724465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66718 (or 66715 counting only the distinct ones).

The product of its digits is 126443520, while the sum is 63.

The spelling of 387872724465 in words is "three hundred eighty-seven billion, eight hundred seventy-two million, seven hundred twenty-four thousand, four hundred sixty-five".