39479984544 has 720 divisors, whose sum is σ = 149330672064. Its totient is φ = 8908922880.

The previous prime is 39479984539. The next prime is 39479984549. The reversal of 39479984544 is 44548997493.

It is an interprime number because it is at equal distance from previous prime (39479984539) and next prime (39479984549).

It is a Harshad number since it is a multiple of its sum of digits (66).

It is not an unprimeable number, because it can be changed into a prime (39479984549) by changing a digit.

It is a polite number, since it can be written in 119 ways as a sum of consecutive naturals, for example, 2322352024 + ... + 2322352040.

Almost surely, 2^39479984544 is an apocalyptic number.

39479984544 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39479984544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74665336032).

39479984544 is an abundant number, since it is smaller than the sum of its proper divisors (109850687520).

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

39479984544 is a wasteful number, since it uses less digits than its factorization.

39479984544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111 (or 53 counting only the distinct ones).

The product of its digits is 156764160, while the sum is 66.

The spelling of 39479984544 in words is "thirty-nine billion, four hundred seventy-nine million, nine hundred eighty-four thousand, five hundred forty-four".