70409415664 has 20 divisors (see below), whose sum is σ = 155906563504. Its totient is φ = 30175463808.

The previous prime is 70409415649. The next prime is 70409415691. The reversal of 70409415664 is 46651490407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 314327637 + ... + 314327860.

Almost surely, 2^70409415664 is an apocalyptic number.

It is an amenable number.

70409415664 is an abundant number, since it is smaller than the sum of its proper divisors (85497147840).

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

70409415664 is a wasteful number, since it uses less digits than its factorization.

70409415664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 628655512 (or 628655506 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 46.

The spelling of 70409415664 in words is "seventy billion, four hundred nine million, four hundred fifteen thousand, six hundred sixty-four".