823314345644 has 24 divisors (see below), whose sum is σ = 1649127406080. Its totient is φ = 352313566416.

The previous prime is 823314345643. The next prime is 823314345647. The reversal of 823314345644 is 446543413328.

It is a super-3 number, since 3×823314345644³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (823314345643) 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, 22291172 + ... + 22328075.

It is an arithmetic number, because the mean of its divisors is an integer number (68713641920).

Almost surely, 2^823314345644 is an apocalyptic number.

It is an amenable number.

823314345644 is an abundant number, since it is smaller than the sum of its proper divisors (825813060436).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

823314345644 is a wasteful number, since it uses less digits than its factorization.

823314345644 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44619917 (or 44619915 counting only the distinct ones).

The product of its digits is 3317760, while the sum is 47.

The spelling of 823314345644 in words is "eight hundred twenty-three billion, three hundred fourteen million, three hundred forty-five thousand, six hundred forty-four".