23257181542542 has 16 divisors (see below), whose sum is σ = 46515058412880. Its totient is φ = 7752277959552.

The previous prime is 23257181542513. The next prime is 23257181542579. The reversal of 23257181542542 is 24524518175232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28536667 + ... + 29340342.

It is an arithmetic number, because the mean of its divisors is an integer number (2907191150805).

Almost surely, 2^{23257181542542} is an apocalyptic number.

23257181542542 is an abundant number, since it is smaller than the sum of its proper divisors (23257876870338).

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

23257181542542 is a wasteful number, since it uses less digits than its factorization.

23257181542542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57943987.

The product of its digits is 5376000, while the sum is 51.

The spelling of 23257181542542 in words is "twenty-three trillion, two hundred fifty-seven billion, one hundred eighty-one million, five hundred forty-two thousand, five hundred forty-two".