23349631545 has 48 divisors (see below), whose sum is σ = 41254426512. Its totient is φ = 12213780480.

The previous prime is 23349631519. The next prime is 23349631549. The reversal of 23349631545 is 54513694332.

23349631545 is a `hidden beast` number, since 2 + 3 + 3 + 4 + 9 + 631 + 5 + 4 + 5 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 1560329001 + 21789302544 = 39501^2 + 147612^2 .

It is not a de Polignac number, because 23349631545 - 2¹⁴ = 23349615161 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 23349631545.

It is not an unprimeable number, because it can be changed into a prime (23349631549) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 956937 + ... + 981033.

It is an arithmetic number, because the mean of its divisors is an integer number (859467219).

Almost surely, 2^23349631545 is an apocalyptic number.

It is an amenable number.

23349631545 is a deficient number, since it is larger than the sum of its proper divisors (17904794967).

23349631545 is a wasteful number, since it uses less digits than its factorization.

23349631545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24522 (or 24519 counting only the distinct ones).

The product of its digits is 1166400, while the sum is 45.

The spelling of 23349631545 in words is "twenty-three billion, three hundred forty-nine million, six hundred thirty-one thousand, five hundred forty-five".