23885735540 has 48 divisors (see below), whose sum is σ = 51635937024. Its totient is φ = 9274377600.

The previous prime is 23885735483. The next prime is 23885735579. The reversal of 23885735540 is 4553758832.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 281495 + ... + 356385.

It is an arithmetic number, because the mean of its divisors is an integer number (1075748688).

Almost surely, 2^23885735540 is an apocalyptic number.

23885735540 is a gapful number since it is divisible by the number (20) 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 23885735540, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25817968512).

23885735540 is an abundant number, since it is smaller than the sum of its proper divisors (27750201484).

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

23885735540 is a wasteful number, since it uses less digits than its factorization.

23885735540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75368 (or 75366 counting only the distinct ones).

The product of its (nonzero) digits is 4032000, while the sum is 50.

The spelling of 23885735540 in words is "twenty-three billion, eight hundred eighty-five million, seven hundred thirty-five thousand, five hundred forty".