70725718312 has 32 divisors (see below), whose sum is σ = 134975988000. Its totient is φ = 34735149504.

The previous prime is 70725718291. The next prime is 70725718319. The reversal of 70725718312 is 21381752707.

It is not an unprimeable number, because it can be changed into a prime (70725718319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1978 + ... + 376105.

It is an arithmetic number, because the mean of its divisors is an integer number (4217999625).

Almost surely, 2^70725718312 is an apocalyptic number.

It is an amenable number.

70725718312 is a deficient number, since it is larger than the sum of its proper divisors (64250269688).

70725718312 is a wasteful number, since it uses less digits than its factorization.

70725718312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378505 (or 378501 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 43.

The spelling of 70725718312 in words is "seventy billion, seven hundred twenty-five million, seven hundred eighteen thousand, three hundred twelve".