70723613856 has 48 divisors (see below), whose sum is σ = 212170843584. Its totient is φ = 20206746624.

The previous prime is 70723613801. The next prime is 70723613867. The reversal of 70723613856 is 65831632707.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (48).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52621065 + ... + 52622408.

It is an arithmetic number, because the mean of its divisors is an integer number (4420225908).

Almost surely, 2^70723613856 is an apocalyptic number.

It is an amenable number.

70723613856 is an abundant number, since it is smaller than the sum of its proper divisors (141447229728).

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

70723613856 is a wasteful number, since it uses less digits than its factorization.

70723613856 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105243493 (or 105243485 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 70723613856 in words is "seventy billion, seven hundred twenty-three million, six hundred thirteen thousand, eight hundred fifty-six".