23199907725542 has 4 divisors (see below), whose sum is σ = 34799861588316. Its totient is φ = 11599953862770.

The previous prime is 23199907725541. The next prime is 23199907725557. The reversal of 23199907725542 is 24552770999132.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23199907725541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5799976931384 + ... + 5799976931387.

It is an arithmetic number, because the mean of its divisors is an integer number (8699965397079).

Almost surely, 2^{23199907725542} is an apocalyptic number.

23199907725542 is a deficient number, since it is larger than the sum of its proper divisors (11599953862774).

23199907725542 is a wasteful number, since it uses less digits than its factorization.

23199907725542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11599953862773.

The product of its (nonzero) digits is 85730400, while the sum is 65.

The spelling of 23199907725542 in words is "twenty-three trillion, one hundred ninety-nine billion, nine hundred seven million, seven hundred twenty-five thousand, five hundred forty-two".