23454003609 has 27 divisors (see below), whose sum is σ = 34409738389. Its totient is φ = 15394336440.

The previous prime is 23454003499. The next prime is 23454003611. The reversal of 23454003609 is 90630045432.

The square root of 23454003609 is 153147.

It is a perfect power (a square), and thus also a powerful number.

23454003609 is a `hidden beast` number, since 2 + 3 + 4 + 5 + 40 + 0 + 3 + 609 = 666.

It is a de Polignac number, because none of the positive numbers 2^k-23454003609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23454003649) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 32619952 + ... + 32620670.

Almost surely, 2^23454003609 is an apocalyptic number.

23454003609 is the 153147-th square number.

23454003609 is the 76574-th centered octagonal number.

It is an amenable number.

23454003609 is a deficient number, since it is larger than the sum of its proper divisors (10955734780).

23454003609 is an frugal number, since it uses more digits than its factorization.

23454003609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586 (or 793 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 36.

Multiplying 23454003609 by its sum of digits (36), we get a square (844344129924 = 918882²).

The spelling of 23454003609 in words is "twenty-three billion, four hundred fifty-four million, three thousand, six hundred nine".