70897347912 has 32 divisors (see below), whose sum is σ = 177869688480. Its totient is φ = 23548940160.

The previous prime is 70897347881. The next prime is 70897347929. The reversal of 70897347912 is 21974379807.

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, 5212389 + ... + 5225972.

It is an arithmetic number, because the mean of its divisors is an integer number (5558427765).

Almost surely, 2^70897347912 is an apocalyptic number.

It is an amenable number.

70897347912 is an abundant number, since it is smaller than the sum of its proper divisors (106972340568).

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

70897347912 is a wasteful number, since it uses less digits than its factorization.

70897347912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10438653 (or 10438649 counting only the distinct ones).

The product of its (nonzero) digits is 5334336, while the sum is 57.

The spelling of 70897347912 in words is "seventy billion, eight hundred ninety-seven million, three hundred forty-seven thousand, nine hundred twelve".