23435267993 has 4 divisors (see below), whose sum is σ = 23435574708. Its totient is φ = 23434961280.

The previous prime is 23435267971. The next prime is 23435268013. The reversal of 23435267993 is 39976253432.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 20768268544 + 2666999449 = 144112^2 + 51643^2 .

It is a cyclic number.

It is not a de Polignac number, because 23435267993 - 2¹⁰ = 23435266969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23435267953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63005 + ... + 225477.

It is an arithmetic number, because the mean of its divisors is an integer number (5858893677).

Almost surely, 2^23435267993 is an apocalyptic number.

It is an amenable number.

23435267993 is a deficient number, since it is larger than the sum of its proper divisors (306715).

23435267993 is a wasteful number, since it uses less digits than its factorization.

23435267993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306714.

The product of its digits is 7348320, while the sum is 53.

The spelling of 23435267993 in words is "twenty-three billion, four hundred thirty-five million, two hundred sixty-seven thousand, nine hundred ninety-three".