79703081771 has 4 divisors (see below), whose sum is σ = 79704959544. Its totient is φ = 79701204000.

The previous prime is 79703081761. The next prime is 79703081837. The reversal of 79703081771 is 17718030797.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-79703081771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (79703081761) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 873710 + ... + 960611.

It is an arithmetic number, because the mean of its divisors is an integer number (19926239886).

Almost surely, 2^79703081771 is an apocalyptic number.

79703081771 is a deficient number, since it is larger than the sum of its proper divisors (1877773).

79703081771 is a wasteful number, since it uses less digits than its factorization.

79703081771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1877772.

The product of its (nonzero) digits is 518616, while the sum is 50.

The spelling of 79703081771 in words is "seventy-nine billion, seven hundred three million, eighty-one thousand, seven hundred seventy-one".