23523143780136 has 2048 divisors, whose sum is σ = 88289574912000. Its totient is φ = 5021469573120.

The previous prime is 23523143780113. The next prime is 23523143780141. The reversal of 23523143780136 is 63108734132532.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 511 ways as a sum of consecutive naturals, for example, 118206752565 + ... + 118206752763.

It is an arithmetic number, because the mean of its divisors is an integer number (43110144000).

Almost surely, 2^{23523143780136} is an apocalyptic number.

23523143780136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23523143780136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44144787456000).

23523143780136 is an abundant number, since it is smaller than the sum of its proper divisors (64766431131864).

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

23523143780136 is a wasteful number, since it uses less digits than its factorization.

23523143780136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 479 (or 475 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 48.

The spelling of 23523143780136 in words is "twenty-three trillion, five hundred twenty-three billion, one hundred forty-three million, seven hundred eighty thousand, one hundred thirty-six".