79881571114 has 4 divisors (see below), whose sum is σ = 119822356674. Its totient is φ = 39940785556.

The previous prime is 79881571109. The next prime is 79881571139. The reversal of 79881571114 is 41117518897.

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., 78942455089 + 939116025 = 280967^2 + 30645^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19970392777 + ... + 19970392780.

Almost surely, 2^79881571114 is an apocalyptic number.

79881571114 is a deficient number, since it is larger than the sum of its proper divisors (39940785560).

79881571114 is a wasteful number, since it uses less digits than its factorization.

79881571114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39940785559.

The product of its digits is 564480, while the sum is 52.

The spelling of 79881571114 in words is "seventy-nine billion, eight hundred eighty-one million, five hundred seventy-one thousand, one hundred fourteen".