23547374509 has 8 divisors (see below), whose sum is σ = 24942030840. Its totient is φ = 22153775616.

The previous prime is 23547374497. The next prime is 23547374549. The reversal of 23547374509 is 90547374532.

It can be written as a sum of positive squares in 4 ways, for example, as 1474329609 + 22073044900 = 38397^2 + 148570^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23547374509 - 2¹³ = 23547366317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23547374549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218274 + ... + 307795.

It is an arithmetic number, because the mean of its divisors is an integer number (3117753855).

Almost surely, 2^23547374509 is an apocalyptic number.

It is an amenable number.

23547374509 is a deficient number, since it is larger than the sum of its proper divisors (1394656331).

23547374509 is a wasteful number, since it uses less digits than its factorization.

23547374509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 528719.

The product of its (nonzero) digits is 3175200, while the sum is 49.

The spelling of 23547374509 in words is "twenty-three billion, five hundred forty-seven million, three hundred seventy-four thousand, five hundred nine".