70947702816 has 96 divisors (see below), whose sum is σ = 191177013888. Its totient is φ = 23024424960.

The previous prime is 70947702769. The next prime is 70947702817. The reversal of 70947702816 is 61820774907.

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

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (70947702817) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1898326 + ... + 1935338.

It is an arithmetic number, because the mean of its divisors is an integer number (1991427228).

Almost surely, 2^70947702816 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 70947702816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95588506944).

70947702816 is an abundant number, since it is smaller than the sum of its proper divisors (120229311072).

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

70947702816 is a wasteful number, since it uses less digits than its factorization.

70947702816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37554 (or 37546 counting only the distinct ones).

The product of its (nonzero) digits is 1185408, while the sum is 51.

The spelling of 70947702816 in words is "seventy billion, nine hundred forty-seven million, seven hundred two thousand, eight hundred sixteen".