70720735108 has 24 divisors (see below), whose sum is σ = 124118199072. Its totient is φ = 35258530944.

The previous prime is 70720735081. The next prime is 70720735121. The reversal of 70720735108 is 80153702707.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2121135 + ... + 2154217.

It is an arithmetic number, because the mean of its divisors is an integer number (5171591628).

Almost surely, 2^70720735108 is an apocalyptic number.

It is an amenable number.

70720735108 is a deficient number, since it is larger than the sum of its proper divisors (53397463964).

70720735108 is a wasteful number, since it uses less digits than its factorization.

70720735108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34611 (or 34609 counting only the distinct ones).

The product of its (nonzero) digits is 82320, while the sum is 40.

The spelling of 70720735108 in words is "seventy billion, seven hundred twenty million, seven hundred thirty-five thousand, one hundred eight".