39989922480 has 160 divisors (see below), whose sum is σ = 137832606720. Its totient is φ = 10657048320.

The previous prime is 39989922457. The next prime is 39989922491. The reversal of 39989922480 is 8422998993.

39989922480 is a `hidden beast` number, since 399 + 89 + 92 + 2 + 4 + 80 = 666.

39989922480 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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, 3906649 + ... + 3916871.

It is an arithmetic number, because the mean of its divisors is an integer number (861453792).

Almost surely, 2^39989922480 is an apocalyptic number.

39989922480 is a gapful number since it is divisible by the number (30) 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 39989922480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (68916303360).

39989922480 is an abundant number, since it is smaller than the sum of its proper divisors (97842684240).

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

39989922480 is a wasteful number, since it uses less digits than its factorization.

39989922480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12056 (or 12044 counting only the distinct ones).

The product of its (nonzero) digits is 20155392, while the sum is 63.

The spelling of 39989922480 in words is "thirty-nine billion, nine hundred eighty-nine million, nine hundred twenty-two thousand, four hundred eighty".