2355643823 has 8 divisors (see below), whose sum is σ = 2539110000. Its totient is φ = 2172500928.

The previous prime is 2355643819. The next prime is 2355643859. The reversal of 2355643823 is 3283465532.

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

It is not a de Polignac number, because 2355643823 - 2² = 2355643819 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 (2355643223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65573 + ... + 94926.

It is an arithmetic number, because the mean of its divisors is an integer number (317388750).

Almost surely, 2^2355643823 is an apocalyptic number.

2355643823 is a deficient number, since it is larger than the sum of its proper divisors (183466177).

2355643823 is a wasteful number, since it uses less digits than its factorization.

2355643823 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161641.

The product of its digits is 518400, while the sum is 41.

The square root of 2355643823 is about 48534.9752549643. The cubic root of 2355643823 is about 1330.5663675989.

The spelling of 2355643823 in words is "two billion, three hundred fifty-five million, six hundred forty-three thousand, eight hundred twenty-three".