23515314542 has 4 divisors (see below), whose sum is σ = 35272971816. Its totient is φ = 11757657270.

The previous prime is 23515314541. The next prime is 23515314607. The reversal of 23515314542 is 24541351532.

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 (23515314541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5878828634 + ... + 5878828637.

It is an arithmetic number, because the mean of its divisors is an integer number (8818242954).

Almost surely, 2^23515314542 is an apocalyptic number.

23515314542 is a deficient number, since it is larger than the sum of its proper divisors (11757657274).

23515314542 is a wasteful number, since it uses less digits than its factorization.

23515314542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11757657273.

The product of its digits is 72000, while the sum is 35.

The spelling of 23515314542 in words is "twenty-three billion, five hundred fifteen million, three hundred fourteen thousand, five hundred forty-two".