82791723403 has 4 divisors (see below), whose sum is σ = 82814121400. Its totient is φ = 82769325408.

The previous prime is 82791723383. The next prime is 82791723449. The reversal of 82791723403 is 30432719728.

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

It is a cyclic number.

It is not a de Polignac number, because 82791723403 - 2²¹ = 82789626251 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82791723803) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11193453 + ... + 11200846.

It is an arithmetic number, because the mean of its divisors is an integer number (20703530350).

Almost surely, 2^82791723403 is an apocalyptic number.

82791723403 is a deficient number, since it is larger than the sum of its proper divisors (22397997).

82791723403 is a wasteful number, since it uses less digits than its factorization.

82791723403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22397996.

The product of its (nonzero) digits is 508032, while the sum is 46.

The spelling of 82791723403 in words is "eighty-two billion, seven hundred ninety-one million, seven hundred twenty-three thousand, four hundred three".