70748979705 has 12 divisors (see below), whose sum is σ = 122631564900. Its totient is φ = 37732789152.

The previous prime is 70748979661. The next prime is 70748979751. The reversal of 70748979705 is 50797984707.

It can be written as a sum of positive squares in 2 ways, for example, as 9004681449 + 61744298256 = 94893^2 + 248484^2 .

It is not a de Polignac number, because 70748979705 - 2¹⁰ = 70748978681 is a prime.

It is a Smith number, since the sum of its digits (63) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 786099730 + ... + 786099819.

It is an arithmetic number, because the mean of its divisors is an integer number (10219297075).

Almost surely, 2^70748979705 is an apocalyptic number.

It is an amenable number.

70748979705 is a deficient number, since it is larger than the sum of its proper divisors (51882585195).

70748979705 is a wasteful number, since it uses less digits than its factorization.

70748979705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1572199560 (or 1572199557 counting only the distinct ones).

The product of its (nonzero) digits is 31116960, while the sum is 63.

The spelling of 70748979705 in words is "seventy billion, seven hundred forty-eight million, nine hundred seventy-nine thousand, seven hundred five".