70856388819472 has 20 divisors (see below), whose sum is σ = 137286577181520. Its totient is φ = 35427594708128.

The previous prime is 70856388819467. The next prime is 70856388819493. The reversal of 70856388819472 is 27491888365807.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36505822 + ... + 38397757.

It is an arithmetic number, because the mean of its divisors is an integer number (6864328859076).

It is a 1-persistent number, because it is pandigital, but 2⋅70856388819472 = 141712777638944 is not.

Almost surely, 2^{70856388819472} is an apocalyptic number.

It is an amenable number.

70856388819472 is a deficient number, since it is larger than the sum of its proper divisors (66430188362048).

70856388819472 is a wasteful number, since it uses less digits than its factorization.

70856388819472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74962710 (or 74962704 counting only the distinct ones).

The product of its (nonzero) digits is 1300561920, while the sum is 76.

The spelling of 70856388819472 in words is "seventy trillion, eight hundred fifty-six billion, three hundred eighty-eight million, eight hundred nineteen thousand, four hundred seventy-two".