70857695720 has 64 divisors (see below), whose sum is σ = 188083123200. Its totient is φ = 23510384640.

The previous prime is 70857695719. The next prime is 70857695737. The reversal of 70857695720 is 2759675807.

It is a Harshad number since it is a multiple of its sum of digits (56).

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 15 ways as a sum of consecutive naturals, for example, 4072985 + ... + 4090344.

It is an arithmetic number, because the mean of its divisors is an integer number (2938798800).

Almost surely, 2^70857695720 is an apocalyptic number.

70857695720 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

70857695720 is an abundant number, since it is smaller than the sum of its proper divisors (117225427480).

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

70857695720 is a wasteful number, since it uses less digits than its factorization.

70857695720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8163378 (or 8163374 counting only the distinct ones).

The product of its (nonzero) digits is 7408800, while the sum is 56.

The spelling of 70857695720 in words is "seventy billion, eight hundred fifty-seven million, six hundred ninety-five thousand, seven hundred twenty".