23685242280 has 64 divisors (see below), whose sum is σ = 81206547840. Its totient is φ = 5413769472.

The previous prime is 23685242279. The next prime is 23685242311. The reversal of 23685242280 is 8224258632.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 14097519 + ... + 14099198.

It is an arithmetic number, because the mean of its divisors is an integer number (1268852310).

Almost surely, 2^23685242280 is an apocalyptic number.

23685242280 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23685242280 is an abundant number, since it is smaller than the sum of its proper divisors (57521305560).

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

23685242280 is a wasteful number, since it uses less digits than its factorization.

23685242280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28196738 (or 28196734 counting only the distinct ones).

The product of its (nonzero) digits is 368640, while the sum is 42.

The spelling of 23685242280 in words is "twenty-three billion, six hundred eighty-five million, two hundred forty-two thousand, two hundred eighty".