70082778864 has 80 divisors (see below), whose sum is σ = 208107251712. Its totient is φ = 19907890944.

The previous prime is 70082778853. The next prime is 70082778877. The reversal of 70082778864 is 46887728007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 544704 + ... + 660959.

Almost surely, 2^70082778864 is an apocalyptic number.

It is an amenable number.

70082778864 is an abundant number, since it is smaller than the sum of its proper divisors (138024472848).

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

70082778864 is a wasteful number, since it uses less digits than its factorization.

70082778864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1205854 (or 1205848 counting only the distinct ones).

The product of its (nonzero) digits is 8429568, while the sum is 57.

It can be divided in two parts, 7008 and 2778864, that added together give a palindrome (2785872).

The spelling of 70082778864 in words is "seventy billion, eighty-two million, seven hundred seventy-eight thousand, eight hundred sixty-four".