70722759968 has 72 divisors (see below), whose sum is σ = 162163814400. Its totient is φ = 30273065088.

The previous prime is 70722759917. The next prime is 70722759979. The reversal of 70722759968 is 86995722707.

It is a super-2 number, since 2×70722759968² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 70722759968.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1288673 + ... + 1342431.

It is an arithmetic number, because the mean of its divisors is an integer number (2252275200).

Almost surely, 2^70722759968 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 70722759968, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81081907200).

70722759968 is an abundant number, since it is smaller than the sum of its proper divisors (91441054432).

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

70722759968 is a wasteful number, since it uses less digits than its factorization.

70722759968 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54622 (or 54607 counting only the distinct ones).

The product of its (nonzero) digits is 26671680, while the sum is 62.

The spelling of 70722759968 in words is "seventy billion, seven hundred twenty-two million, seven hundred fifty-nine thousand, nine hundred sixty-eight".