23783963380 has 12 divisors (see below), whose sum is σ = 49946323140. Its totient is φ = 9513585344.

The previous prime is 23783963323. The next prime is 23783963381. The reversal of 23783963380 is 8336938732.

It can be written as a sum of positive squares in 2 ways, for example, as 5533574544 + 18250388836 = 74388^2 + 135094^2 .

It is a super-2 number, since 2×23783963380² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23783963381) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 594599065 + ... + 594599104.

It is an arithmetic number, because the mean of its divisors is an integer number (4162193595).

Almost surely, 2^23783963380 is an apocalyptic number.

23783963380 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23783963380 is an abundant number, since it is smaller than the sum of its proper divisors (26162359760).

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

23783963380 is a wasteful number, since it uses less digits than its factorization.

23783963380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1189198178 (or 1189198176 counting only the distinct ones).

The product of its (nonzero) digits is 3919104, while the sum is 52.

The spelling of 23783963380 in words is "twenty-three billion, seven hundred eighty-three million, nine hundred sixty-three thousand, three hundred eighty".