23638186242 has 96 divisors (see below), whose sum is σ = 57008779776. Its totient is φ = 7017753600.

The previous prime is 23638186237. The next prime is 23638186249. The reversal of 23638186242 is 24268183632.

23638186242 is a `hidden beast` number, since 2 + 3 + 6 + 3 + 8 + 18 + 624 + 2 = 666.

It is a super-2 number, since 2×23638186242² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23638186249) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10398418 + ... + 10400690.

It is an arithmetic number, because the mean of its divisors is an integer number (593841456).

Almost surely, 2^23638186242 is an apocalyptic number.

23638186242 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 23638186242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28504389888).

23638186242 is an abundant number, since it is smaller than the sum of its proper divisors (33370593534).

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

23638186242 is a wasteful number, since it uses less digits than its factorization.

23638186242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3336 (or 3333 counting only the distinct ones).

The product of its digits is 663552, while the sum is 45.

The spelling of 23638186242 in words is "twenty-three billion, six hundred thirty-eight million, one hundred eighty-six thousand, two hundred forty-two".