823916452597 has 4 divisors (see below), whose sum is σ = 941618802976. Its totient is φ = 706214102220.

The previous prime is 823916452537. The next prime is 823916452613. The reversal of 823916452597 is 795254619328.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 823916452597 - 2³⁵ = 789556714229 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823916452537) 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, 58851175179 + ... + 58851175192.

It is an arithmetic number, because the mean of its divisors is an integer number (235404700744).

Almost surely, 2^823916452597 is an apocalyptic number.

It is an amenable number.

823916452597 is a deficient number, since it is larger than the sum of its proper divisors (117702350379).

823916452597 is a wasteful number, since it uses less digits than its factorization.

823916452597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117702350378.

The product of its digits is 32659200, while the sum is 61.

The spelling of 823916452597 in words is "eight hundred twenty-three billion, nine hundred sixteen million, four hundred fifty-two thousand, five hundred ninety-seven".