39832115645 has 48 divisors (see below), whose sum is σ = 57259655040. Its totient is φ = 26055292032.

The previous prime is 39832115611. The next prime is 39832115657. The reversal of 39832115645 is 54651123893.

It is not a de Polignac number, because 39832115645 - 2¹⁶ = 39832050109 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 39832115645.

It is a congruent number.

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, 7347746 + ... + 7353164.

It is an arithmetic number, because the mean of its divisors is an integer number (1192909480).

Almost surely, 2^39832115645 is an apocalyptic number.

39832115645 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

39832115645 is a deficient number, since it is larger than the sum of its proper divisors (17427539395).

39832115645 is a wasteful number, since it uses less digits than its factorization.

39832115645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5874 (or 5851 counting only the distinct ones).

The product of its digits is 777600, while the sum is 47.

The spelling of 39832115645 in words is "thirty-nine billion, eight hundred thirty-two million, one hundred fifteen thousand, six hundred forty-five".