70394639805 has 96 divisors (see below), whose sum is σ = 147959944704. Its totient is φ = 30224130048.

The previous prime is 70394639797. The next prime is 70394639813. The reversal of 70394639805 is 50893649307.

70394639805 is a `hidden beast` number, since 70 + 39 + 463 + 9 + 80 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (70394639797) and next prime (70394639813).

It is not a de Polignac number, because 70394639805 - 2³ = 70394639797 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2594389 + ... + 2621381.

It is an arithmetic number, because the mean of its divisors is an integer number (1541249424).

Almost surely, 2^70394639805 is an apocalyptic number.

It is an amenable number.

70394639805 is an abundant number, since it is smaller than the sum of its proper divisors (77565304899).

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

70394639805 is a wasteful number, since it uses less digits than its factorization.

70394639805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27515 (or 27512 counting only the distinct ones).

The product of its (nonzero) digits is 4898880, while the sum is 54.

The spelling of 70394639805 in words is "seventy billion, three hundred ninety-four million, six hundred thirty-nine thousand, eight hundred five".