70891116324 has 144 divisors (see below), whose sum is σ = 199744634880. Its totient is φ = 19490829120.

The previous prime is 70891116301. The next prime is 70891116343. The reversal of 70891116324 is 42361119807.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3251949 + ... + 3273675.

It is an arithmetic number, because the mean of its divisors is an integer number (1387115520).

Almost surely, 2^70891116324 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 70891116324, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99872317440).

70891116324 is an abundant number, since it is smaller than the sum of its proper divisors (128853518556).

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

70891116324 is a wasteful number, since it uses less digits than its factorization.

70891116324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21958 (or 21949 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The spelling of 70891116324 in words is "seventy billion, eight hundred ninety-one million, one hundred sixteen thousand, three hundred twenty-four".