39920618922 has 8 divisors (see below), whose sum is σ = 79841237856. Its totient is φ = 13306872972.

The previous prime is 39920618873. The next prime is 39920618929. The reversal of 39920618922 is 22981602993.

It is a happy number.

39920618922 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

39920618922 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (39920618929) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3326718238 + ... + 3326718249.

It is an arithmetic number, because the mean of its divisors is an integer number (9980154732).

Almost surely, 2^39920618922 is an apocalyptic number.

39920618922 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

39920618922 is a wasteful number, since it uses less digits than its factorization.

39920618922 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6653436492.

The product of its (nonzero) digits is 839808, while the sum is 51.

The spelling of 39920618922 in words is "thirty-nine billion, nine hundred twenty million, six hundred eighteen thousand, nine hundred twenty-two".