23451145045 has 4 divisors (see below), whose sum is σ = 28141374060. Its totient is φ = 18760916032.

The previous prime is 23451145009. The next prime is 23451145049. The reversal of 23451145045 is 54054115432.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17950104484 + 5501040561 = 133978^2 + 74169^2 .

It is a cyclic number.

It is not a de Polignac number, because 23451145045 - 2⁹ = 23451144533 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23451145045.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23451145049) 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, 2345114500 + ... + 2345114509.

It is an arithmetic number, because the mean of its divisors is an integer number (7035343515).

Almost surely, 2^23451145045 is an apocalyptic number.

It is an amenable number.

23451145045 is a deficient number, since it is larger than the sum of its proper divisors (4690229015).

23451145045 is an equidigital number, since it uses as much as digits as its factorization.

23451145045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4690229014.

The product of its (nonzero) digits is 48000, while the sum is 34.

The spelling of 23451145045 in words is "twenty-three billion, four hundred fifty-one million, one hundred forty-five thousand, forty-five".