70831739256 has 64 divisors (see below), whose sum is σ = 178231173120. Its totient is φ = 23457260160.

The previous prime is 70831739239. The next prime is 70831739281. The reversal of 70831739256 is 65293713807.

It is a junction number, because it is equal to n+sod(n) for n = 70831739199 and 70831739208.

It is a congruent number.

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, 4784041 + ... + 4798823.

It is an arithmetic number, because the mean of its divisors is an integer number (2784862080).

Almost surely, 2^70831739256 is an apocalyptic number.

It is an amenable number.

70831739256 is an abundant number, since it is smaller than the sum of its proper divisors (107399433864).

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

70831739256 is a wasteful number, since it uses less digits than its factorization.

70831739256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16076 (or 16072 counting only the distinct ones).

The product of its (nonzero) digits is 1905120, while the sum is 51.

The spelling of 70831739256 in words is "seventy billion, eight hundred thirty-one million, seven hundred thirty-nine thousand, two hundred fifty-six".