39684670020 has 72 divisors (see below), whose sum is σ = 120405789504. Its totient is φ = 10580033088.

The previous prime is 39684670009. The next prime is 39684670033. The reversal of 39684670020 is 2007648693.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 794217 + ... + 842703.

It is an arithmetic number, because the mean of its divisors is an integer number (1672302632).

Almost surely, 2^39684670020 is an apocalyptic number.

39684670020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39684670020 is an abundant number, since it is smaller than the sum of its proper divisors (80721119484).

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

39684670020 is a wasteful number, since it uses less digits than its factorization.

39684670020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53049 (or 53044 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The spelling of 39684670020 in words is "thirty-nine billion, six hundred eighty-four million, six hundred seventy thousand, twenty".