23547730097 has 4 divisors (see below), whose sum is σ = 24359720820. Its totient is φ = 22735739376.

The previous prime is 23547730067. The next prime is 23547730099. The reversal of 23547730097 is 79003774532.

It is a happy number.

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 8419714081 + 15128016016 = 91759^2 + 122996^2 .

It is a cyclic number.

It is not a de Polignac number, because 23547730097 - 2⁶ = 23547730033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23547730099) 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, 405995318 + ... + 405995375.

It is an arithmetic number, because the mean of its divisors is an integer number (6089930205).

Almost surely, 2^23547730097 is an apocalyptic number.

It is an amenable number.

23547730097 is a deficient number, since it is larger than the sum of its proper divisors (811990723).

23547730097 is an equidigital number, since it uses as much as digits as its factorization.

23547730097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 811990722.

The product of its (nonzero) digits is 1111320, while the sum is 47.

The spelling of 23547730097 in words is "twenty-three billion, five hundred forty-seven million, seven hundred thirty thousand, ninety-seven".