70989530713 has 4 divisors (see below), whose sum is σ = 70990099380. Its totient is φ = 70988962048.

The previous prime is 70989530707. The next prime is 70989530771. The reversal of 70989530713 is 31703598907.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 31703598907 = 157 ⋅201933751.

It can be written as a sum of positive squares in 2 ways, for example, as 35258323984 + 35731206729 = 187772^2 + 189027^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70989530713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70989630713) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6748 + ... + 376861.

It is an arithmetic number, because the mean of its divisors is an integer number (17747524845).

Almost surely, 2^70989530713 is an apocalyptic number.

It is an amenable number.

70989530713 is a deficient number, since it is larger than the sum of its proper divisors (568667).

70989530713 is a wasteful number, since it uses less digits than its factorization.

70989530713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 568666.

The product of its (nonzero) digits is 1428840, while the sum is 52.

The spelling of 70989530713 in words is "seventy billion, nine hundred eighty-nine million, five hundred thirty thousand, seven hundred thirteen".