23154436707643 has 16 divisors (see below), whose sum is σ = 23852100859776. Its totient is φ = 22463200604160.

The previous prime is 23154436707631. The next prime is 23154436707683. The reversal of 23154436707643 is 34670763445132.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23154436707643 is a prime.

It is a super-2 number, since 2×23154436707643² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23154436707683) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18242721 + ... + 19470637.

It is an arithmetic number, because the mean of its divisors is an integer number (1490756303736).

Almost surely, 2^{23154436707643} is an apocalyptic number.

23154436707643 is a deficient number, since it is larger than the sum of its proper divisors (697664152133).

23154436707643 is a wasteful number, since it uses less digits than its factorization.

23154436707643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1230534.

The product of its (nonzero) digits is 30481920, while the sum is 55.

The spelling of 23154436707643 in words is "twenty-three trillion, one hundred fifty-four billion, four hundred thirty-six million, seven hundred seven thousand, six hundred forty-three".