70812835978464 has 96 divisors (see below), whose sum is σ = 209087283394080. Its totient is φ = 23604278636160.

The previous prime is 70812835978397. The next prime is 70812835978471. The reversal of 70812835978464 is 46487953821807.

It is a happy number.

70812835978464 is a `hidden beast` number, since 7 + 0 + 8 + 1 + 28 + 3 + 597 + 8 + 4 + 6 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 70812835978392 and 70812835978401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 505851627 + ... + 505991594.

It is an arithmetic number, because the mean of its divisors is an integer number (2177992535355).

It is a 1-persistent number, because it is pandigital, but 2⋅70812835978464 = 141625671956928 is not.

Almost surely, 2^{70812835978464} is an apocalyptic number.

It is an amenable number.

70812835978464 is an abundant number, since it is smaller than the sum of its proper divisors (138274447415616).

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

70812835978464 is an equidigital number, since it uses as much as digits as its factorization.

70812835978464 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011843252 (or 1011843226 counting only the distinct ones).

The product of its (nonzero) digits is 650280960, while the sum is 72.

The spelling of 70812835978464 in words is "seventy trillion, eight hundred twelve billion, eight hundred thirty-five million, nine hundred seventy-eight thousand, four hundred sixty-four".