823116825445 has 8 divisors (see below), whose sum is σ = 987860828160. Its totient is φ = 658413035280.

The previous prime is 823116825431. The next prime is 823116825467. The reversal of 823116825445 is 544528611328.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 823116825445 - 2²³ = 823108436837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10008085 + ... + 10089994.

It is an arithmetic number, because the mean of its divisors is an integer number (123482603520).

Almost surely, 2^823116825445 is an apocalyptic number.

It is an amenable number.

823116825445 is a deficient number, since it is larger than the sum of its proper divisors (164744002715).

823116825445 is a wasteful number, since it uses less digits than its factorization.

823116825445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20106275.

The product of its digits is 1843200, while the sum is 49.

The spelling of 823116825445 in words is "eight hundred twenty-three billion, one hundred sixteen million, eight hundred twenty-five thousand, four hundred forty-five".