70491169728 has 112 divisors (see below), whose sum is σ = 236835452160. Its totient is φ = 20140330752.

The previous prime is 70491169691. The next prime is 70491169769. The reversal of 70491169728 is 82796119407.

70491169728 is a `hidden beast` number, since 70 + 491 + 1 + 69 + 7 + 28 = 666.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 2901726 + ... + 2925917.

Almost surely, 2^70491169728 is an apocalyptic number.

It is an amenable number.

70491169728 is an abundant number, since it is smaller than the sum of its proper divisors (166344282432).

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

70491169728 is a wasteful number, since it uses less digits than its factorization.

70491169728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5827671 (or 5827655 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 70491169728 in words is "seventy billion, four hundred ninety-one million, one hundred sixty-nine thousand, seven hundred twenty-eight".