70688208257 has 16 divisors (see below), whose sum is σ = 76392087552. Its totient is φ = 65244065040.

The previous prime is 70688208203. The next prime is 70688208277. The reversal of 70688208257 is 75280288607.

It is a de Polignac number, because none of the positive numbers 2^k-70688208257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 70688208199 and 70688208208.

It is not an unprimeable number, because it can be changed into a prime (70688208277) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 383753 + ... + 537254.

It is an arithmetic number, because the mean of its divisors is an integer number (4774505472).

Almost surely, 2^70688208257 is an apocalyptic number.

It is an amenable number.

70688208257 is a deficient number, since it is larger than the sum of its proper divisors (5703879295).

70688208257 is a wasteful number, since it uses less digits than its factorization.

70688208257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 921148.

The product of its (nonzero) digits is 3010560, while the sum is 53.

The spelling of 70688208257 in words is "seventy billion, six hundred eighty-eight million, two hundred eight thousand, two hundred fifty-seven".