23138643060 has 240 divisors, whose sum is σ = 78936713856. Its totient is φ = 5639839488.

The previous prime is 23138643043. The next prime is 23138643131. The reversal of 23138643060 is 6034683132.

23138643060 is a `hidden beast` number, since 2 + 3 + 1 + 3 + 8 + 643 + 0 + 6 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 2163847 + ... + 2174513.

Almost surely, 2^23138643060 is an apocalyptic number.

23138643060 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 23138643060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39468356928).

23138643060 is an abundant number, since it is smaller than the sum of its proper divisors (55798070796).

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

23138643060 is a wasteful number, since it uses less digits than its factorization.

23138643060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10804 (or 10793 counting only the distinct ones).

The product of its (nonzero) digits is 62208, while the sum is 36.

The spelling of 23138643060 in words is "twenty-three billion, one hundred thirty-eight million, six hundred forty-three thousand, sixty".