70257677715 has 12 divisors (see below), whose sum is σ = 121779974784. Its totient is φ = 37470761424.

The previous prime is 70257677687. The next prime is 70257677761. The reversal of 70257677715 is 51777675207.

It is not a de Polignac number, because 70257677715 - 2¹⁶ = 70257612179 is a prime.

It is a super-2 number, since 2×70257677715² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 780640819 + ... + 780640908.

It is an arithmetic number, because the mean of its divisors is an integer number (10148331232).

Almost surely, 2^70257677715 is an apocalyptic number.

70257677715 is a deficient number, since it is larger than the sum of its proper divisors (51522297069).

70257677715 is a wasteful number, since it uses less digits than its factorization.

70257677715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1561281738 (or 1561281735 counting only the distinct ones).

The product of its (nonzero) digits is 5042100, while the sum is 54.

The spelling of 70257677715 in words is "seventy billion, two hundred fifty-seven million, six hundred seventy-seven thousand, seven hundred fifteen".