23643343542 has 64 divisors (see below), whose sum is σ = 58589798400. Its totient is φ = 6193736064.

The previous prime is 23643343517. The next prime is 23643343547. The reversal of 23643343542 is 24534334632.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a self number, because there is not a number n which added to its sum of digits gives 23643343542.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23643343547) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63958 + ... + 226665.

It is an arithmetic number, because the mean of its divisors is an integer number (915465600).

Almost surely, 2^23643343542 is an apocalyptic number.

23643343542 is an abundant number, since it is smaller than the sum of its proper divisors (34946454858).

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

23643343542 is a wasteful number, since it uses less digits than its factorization.

23643343542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290797.

The product of its digits is 622080, while the sum is 39.

The spelling of 23643343542 in words is "twenty-three billion, six hundred forty-three million, three hundred forty-three thousand, five hundred forty-two".