23154261474540 has 72 divisors (see below), whose sum is σ = 75416737383792. Its totient is φ = 5292402622080.

The previous prime is 23154261474517. The next prime is 23154261474541. The reversal of 23154261474540 is 4547416245132.

It is a super-2 number, since 2×23154261474540² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23154261474540.

It is not an unprimeable number, because it can be changed into a prime (23154261474541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3937796631 + ... + 3937802510.

It is an arithmetic number, because the mean of its divisors is an integer number (1047454685886).

Almost surely, 2^{23154261474540} is an apocalyptic number.

23154261474540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23154261474540 is an abundant number, since it is smaller than the sum of its proper divisors (52262475909252).

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

23154261474540 is a wasteful number, since it uses less digits than its factorization.

23154261474540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7875599167 (or 7875599158 counting only the distinct ones).

The product of its (nonzero) digits is 3225600, while the sum is 48.

The spelling of 23154261474540 in words is "twenty-three trillion, one hundred fifty-four billion, two hundred sixty-one million, four hundred seventy-four thousand, five hundred forty".