323763513945 has 64 divisors (see below), whose sum is σ = 554912176896. Its totient is φ = 160619397120.

The previous prime is 323763513863. The next prime is 323763513947. The reversal of 323763513945 is 549315367323.

It is not a de Polignac number, because 323763513945 - 2¹⁵ = 323763481177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is not an unprimeable number, because it can be changed into a prime (323763513947) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18715750 + ... + 18733040.

It is an arithmetic number, because the mean of its divisors is an integer number (8670502764).

Almost surely, 2^323763513945 is an apocalyptic number.

It is an amenable number.

323763513945 is a deficient number, since it is larger than the sum of its proper divisors (231148662951).

323763513945 is a wasteful number, since it uses less digits than its factorization.

323763513945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18170.

The product of its digits is 6123600, while the sum is 51.

The spelling of 323763513945 in words is "three hundred twenty-three billion, seven hundred sixty-three million, five hundred thirteen thousand, nine hundred forty-five".