3945479697264 has 80 divisors (see below), whose sum is σ = 11649642589440. Its totient is φ = 1127175060480.

The previous prime is 3945479697233. The next prime is 3945479697277. The reversal of 3945479697264 is 4627969745493.

3945479697264 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

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, 3107944 + ... + 4189304.

It is an arithmetic number, because the mean of its divisors is an integer number (145620532368).

Almost surely, 2^{3945479697264} is an apocalyptic number.

It is an amenable number.

3945479697264 is an abundant number, since it is smaller than the sum of its proper divisors (7704162892176).

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

3945479697264 is a wasteful number, since it uses less digits than its factorization.

3945479697264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1092238 (or 1092232 counting only the distinct ones).

The product of its digits is 2469035520, while the sum is 75.

The spelling of 3945479697264 in words is "three trillion, nine hundred forty-five billion, four hundred seventy-nine million, six hundred ninety-seven thousand, two hundred sixty-four".