70389644505 has 8 divisors (see below), whose sum is σ = 112623431232. Its totient is φ = 37541143728.

The previous prime is 70389644467. The next prime is 70389644519. The reversal of 70389644505 is 50544698307.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 70389644505 - 2¹⁷ = 70389513433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2346321469 + ... + 2346321498.

It is an arithmetic number, because the mean of its divisors is an integer number (14077928904).

Almost surely, 2^70389644505 is an apocalyptic number.

It is an amenable number.

70389644505 is a deficient number, since it is larger than the sum of its proper divisors (42233786727).

70389644505 is a wasteful number, since it uses less digits than its factorization.

70389644505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4692642975.

The product of its (nonzero) digits is 3628800, while the sum is 51.

The spelling of 70389644505 in words is "seventy billion, three hundred eighty-nine million, six hundred forty-four thousand, five hundred five".