39456445020 has 24 divisors (see below), whose sum is σ = 110478046224. Its totient is φ = 10521718656.

The previous prime is 39456444983. The next prime is 39456445043. The reversal of 39456445020 is 2054465493.

39456445020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×39456445020² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328803649 + ... + 328803768.

It is an arithmetic number, because the mean of its divisors is an integer number (4603251926).

Almost surely, 2^39456445020 is an apocalyptic number.

39456445020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39456445020 is an abundant number, since it is smaller than the sum of its proper divisors (71021601204).

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

39456445020 is a wasteful number, since it uses less digits than its factorization.

39456445020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 657607429 (or 657607427 counting only the distinct ones).

The product of its (nonzero) digits is 518400, while the sum is 42.

The spelling of 39456445020 in words is "thirty-nine billion, four hundred fifty-six million, four hundred forty-five thousand, twenty".