23542815669493 has 16 divisors (see below), whose sum is σ = 24216116069376. Its totient is φ = 22875397841520.

The previous prime is 23542815669419. The next prime is 23542815669523. The reversal of 23542815669493 is 39496651824532.

It is a cyclic number.

It is not a de Polignac number, because 23542815669493 - 2¹⁷ = 23542815538421 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 (23542815669413) 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, 11036130 + ... + 12995452.

It is an arithmetic number, because the mean of its divisors is an integer number (1513507254336).

Almost surely, 2^{23542815669493} is an apocalyptic number.

It is an amenable number.

23542815669493 is a deficient number, since it is larger than the sum of its proper divisors (673300399883).

23542815669493 is a wasteful number, since it uses less digits than its factorization.

23542815669493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1960824.

The product of its digits is 335923200, while the sum is 67.

The spelling of 23542815669493 in words is "twenty-three trillion, five hundred forty-two billion, eight hundred fifteen million, six hundred sixty-nine thousand, four hundred ninety-three".