39231242865 has 32 divisors (see below), whose sum is σ = 71228367360. Its totient is φ = 20478148992.

The previous prime is 39231242851. The next prime is 39231242881. The reversal of 39231242865 is 56824213293.

It is not a de Polignac number, because 39231242865 - 2⁴ = 39231242849 is a prime.

It is a super-2 number, since 2×39231242865² (a number of 22 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 39231242865.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3085164 + ... + 3097853.

It is an arithmetic number, because the mean of its divisors is an integer number (2225886480).

Almost surely, 2^39231242865 is an apocalyptic number.

It is an amenable number.

39231242865 is a deficient number, since it is larger than the sum of its proper divisors (31997124495).

39231242865 is a wasteful number, since it uses less digits than its factorization.

39231242865 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6183078 (or 6183072 counting only the distinct ones).

The product of its digits is 622080, while the sum is 45.

The spelling of 39231242865 in words is "thirty-nine billion, two hundred thirty-one million, two hundred forty-two thousand, eight hundred sixty-five".