23956738542 has 96 divisors (see below), whose sum is σ = 57352748544. Its totient is φ = 7166707200.

The previous prime is 23956738541. The next prime is 23956738607. The reversal of 23956738542 is 24583765932.

23956738542 is a `hidden beast` number, since 2 + 3 + 9 + 5 + 67 + 38 + 542 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23956738541) 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, 8967867 + ... + 8970537.

It is an arithmetic number, because the mean of its divisors is an integer number (597424464).

Almost surely, 2^23956738542 is an apocalyptic number.

23956738542 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 23956738542, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28676374272).

23956738542 is an abundant number, since it is smaller than the sum of its proper divisors (33396010002).

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

23956738542 is a wasteful number, since it uses less digits than its factorization.

23956738542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3254 (or 3251 counting only the distinct ones).

The product of its digits is 10886400, while the sum is 54.

The spelling of 23956738542 in words is "twenty-three billion, nine hundred fifty-six million, seven hundred thirty-eight thousand, five hundred forty-two".