39960039636 has 96 divisors (see below), whose sum is σ = 115150896000. Its totient is φ = 11880610560.

The previous prime is 39960039617. The next prime is 39960039643. The reversal of 39960039636 is 63693006993.

39960039636 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

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, 254361 + ... + 380288.

It is an arithmetic number, because the mean of its divisors is an integer number (1199488500).

Almost surely, 2^39960039636 is an apocalyptic number.

39960039636 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

39960039636 is an abundant number, since it is smaller than the sum of its proper divisors (75190856364).

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

39960039636 is a wasteful number, since it uses less digits than its factorization.

39960039636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634726 (or 634718 counting only the distinct ones).

The product of its (nonzero) digits is 4251528, while the sum is 54.

The spelling of 39960039636 in words is "thirty-nine billion, nine hundred sixty million, thirty-nine thousand, six hundred thirty-six".