70394572815 has 48 divisors (see below), whose sum is σ = 131197459968. Its totient is φ = 32136815424.

The previous prime is 70394572813. The next prime is 70394572867. The reversal of 70394572815 is 51827549307.

It is not a de Polignac number, because 70394572815 - 2¹ = 70394572813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70394572813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 481654 + ... + 610556.

It is an arithmetic number, because the mean of its divisors is an integer number (2733280416).

Almost surely, 2^70394572815 is an apocalyptic number.

70394572815 is a deficient number, since it is larger than the sum of its proper divisors (60802887153).

70394572815 is a wasteful number, since it uses less digits than its factorization.

70394572815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129668 (or 129661 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 51.

The spelling of 70394572815 in words is "seventy billion, three hundred ninety-four million, five hundred seventy-two thousand, eight hundred fifteen".