70978718784 has 112 divisors (see below), whose sum is σ = 200704143168. Its totient is φ = 22059614208.

The previous prime is 70978718753. The next prime is 70978718803. The reversal of 70978718784 is 48781787907.

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, 247632 + ... + 450864.

Almost surely, 2^70978718784 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70978718784, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (100352071584).

70978718784 is an abundant number, since it is smaller than the sum of its proper divisors (129725424384).

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

70978718784 is a wasteful number, since it uses less digits than its factorization.

70978718784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203372 (or 203362 counting only the distinct ones).

The product of its (nonzero) digits is 44255232, while the sum is 66.

The spelling of 70978718784 in words is "seventy billion, nine hundred seventy-eight million, seven hundred eighteen thousand, seven hundred eighty-four".