70491172498 has 4 divisors (see below), whose sum is σ = 105736758750. Its totient is φ = 35245586248.

The previous prime is 70491172487. The next prime is 70491172553. The reversal of 70491172498 is 89427119407.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 58773759489 + 11717413009 = 242433^2 + 108247^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 17622793123 + ... + 17622793126.

Almost surely, 2^70491172498 is an apocalyptic number.

70491172498 is a deficient number, since it is larger than the sum of its proper divisors (35245586252).

70491172498 is a wasteful number, since it uses less digits than its factorization.

70491172498 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35245586251.

The product of its (nonzero) digits is 1016064, while the sum is 52.

The spelling of 70491172498 in words is "seventy billion, four hundred ninety-one million, one hundred seventy-two thousand, four hundred ninety-eight".