23436145451 has 4 divisors (see below), whose sum is σ = 23732805600. Its totient is φ = 23139485304.

The previous prime is 23436145433. The next prime is 23436145487. The reversal of 23436145451 is 15454163432.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23436145451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23436145951) 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, 148329956 + ... + 148330113.

It is an arithmetic number, because the mean of its divisors is an integer number (5933201400).

Almost surely, 2^23436145451 is an apocalyptic number.

23436145451 is a deficient number, since it is larger than the sum of its proper divisors (296660149).

23436145451 is an equidigital number, since it uses as much as digits as its factorization.

23436145451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 296660148.

The product of its digits is 172800, while the sum is 38.

The spelling of 23436145451 in words is "twenty-three billion, four hundred thirty-six million, one hundred forty-five thousand, four hundred fifty-one".