39677473920 has 512 divisors, whose sum is σ = 150617018880. Its totient is φ = 8695185408.

The previous prime is 39677473877. The next prime is 39677473921. The reversal of 39677473920 is 2937477693.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (39677473921) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36300894 + ... + 36301986.

It is an arithmetic number, because the mean of its divisors is an integer number (294173865).

Almost surely, 2^39677473920 is an apocalyptic number.

39677473920 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 39677473920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75308509440).

39677473920 is an abundant number, since it is smaller than the sum of its proper divisors (110939544960).

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

39677473920 is a wasteful number, since it uses less digits than its factorization.

39677473920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1232 (or 1220 counting only the distinct ones).

The product of its (nonzero) digits is 12002256, while the sum is 57.

The spelling of 39677473920 in words is "thirty-nine billion, six hundred seventy-seven million, four hundred seventy-three thousand, nine hundred twenty".