23134447745 has 4 divisors (see below), whose sum is σ = 27761337300. Its totient is φ = 18507558192.

The previous prime is 23134447741. The next prime is 23134447751. The reversal of 23134447745 is 54774443132.

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 6538824769 + 16595622976 = 80863^2 + 128824^2 .

It is a cyclic number.

It is not a de Polignac number, because 23134447745 - 2² = 23134447741 is a prime.

It is a super-2 number, since 2×23134447745² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23134447696 and 23134447705.

It is not an unprimeable number, because it can be changed into a prime (23134447741) 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, 2313444770 + ... + 2313444779.

It is an arithmetic number, because the mean of its divisors is an integer number (6940334325).

Almost surely, 2^23134447745 is an apocalyptic number.

It is an amenable number.

23134447745 is a deficient number, since it is larger than the sum of its proper divisors (4626889555).

23134447745 is an equidigital number, since it uses as much as digits as its factorization.

23134447745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4626889554.

The product of its digits is 1128960, while the sum is 44.

The spelling of 23134447745 in words is "twenty-three billion, one hundred thirty-four million, four hundred forty-seven thousand, seven hundred forty-five".