70295507689 has 9 divisors (see below), whose sum is σ = 77270168829. Its totient is φ = 63902355660.

The previous prime is 70295507663. The next prime is 70295507741. The reversal of 70295507689 is 98670559207.

The square root of 70295507689 is 265133.

It is a perfect power (a square), and thus also a powerful number.

It is a de Polignac number, because none of the positive numbers 2^k-70295507689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70295507189) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 2904412 + ... + 2928514.

Almost surely, 2^70295507689 is an apocalyptic number.

70295507689 is the 265133-rd square number.

70295507689 is the 132567-th centered octagonal number.

It is an amenable number.

70295507689 is a deficient number, since it is larger than the sum of its proper divisors (6974661140).

70295507689 is an frugal number, since it uses more digits than its factorization.

70295507689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48228 (or 24114 counting only the distinct ones).

The product of its (nonzero) digits is 9525600, while the sum is 58.

The spelling of 70295507689 in words is "seventy billion, two hundred ninety-five million, five hundred seven thousand, six hundred eighty-nine".