79321571763 has 24 divisors (see below), whose sum is σ = 123219677952. Its totient is φ = 45256501584.

The previous prime is 79321571761. The next prime is 79321571783. The reversal of 79321571763 is 36717512397.

It is a happy number.

It is not a de Polignac number, because 79321571763 - 2¹ = 79321571761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (79321571761) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 321895 + ... + 512112.

It is an arithmetic number, because the mean of its divisors is an integer number (5134153248).

Almost surely, 2^79321571763 is an apocalyptic number.

79321571763 is a deficient number, since it is larger than the sum of its proper divisors (43898106189).

79321571763 is a wasteful number, since it uses less digits than its factorization.

79321571763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834671 (or 834664 counting only the distinct ones).

The product of its digits is 1666980, while the sum is 51.

The spelling of 79321571763 in words is "seventy-nine billion, three hundred twenty-one million, five hundred seventy-one thousand, seven hundred sixty-three".