39720574896 has 80 divisors (see below), whose sum is σ = 103751677920. Its totient is φ = 13093539840.

The previous prime is 39720574889. The next prime is 39720574903. The reversal of 39720574896 is 69847502793.

It is an interprime number because it is at equal distance from previous prime (39720574889) and next prime (39720574903).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2823496 + ... + 2837528.

It is an arithmetic number, because the mean of its divisors is an integer number (1296895974).

Almost surely, 2^39720574896 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39720574896, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51875838960).

39720574896 is an abundant number, since it is smaller than the sum of its proper divisors (64031103024).

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

39720574896 is a wasteful number, since it uses less digits than its factorization.

39720574896 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14694 (or 14688 counting only the distinct ones).

The product of its (nonzero) digits is 22861440, while the sum is 60.

The spelling of 39720574896 in words is "thirty-nine billion, seven hundred twenty million, five hundred seventy-four thousand, eight hundred ninety-six".