70645641369 has 16 divisors (see below), whose sum is σ = 99306511680. Its totient is φ = 44548669440.

The previous prime is 70645641361. The next prime is 70645641379. The reversal of 70645641369 is 96314654607.

It is not a de Polignac number, because 70645641369 - 2³ = 70645641361 is a prime.

It is a super-2 number, since 2×70645641369² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70645641361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 930232 + ... + 1003305.

It is an arithmetic number, because the mean of its divisors is an integer number (6206656980).

Almost surely, 2^70645641369 is an apocalyptic number.

It is an amenable number.

70645641369 is a deficient number, since it is larger than the sum of its proper divisors (28660870311).

70645641369 is a wasteful number, since it uses less digits than its factorization.

70645641369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1934200.

The product of its (nonzero) digits is 3265920, while the sum is 51.

The spelling of 70645641369 in words is "seventy billion, six hundred forty-five million, six hundred forty-one thousand, three hundred sixty-nine".