23173542547 has 2 divisors, whose sum is σ = 23173542548. Its totient is φ = 23173542546.

The previous prime is 23173542541. The next prime is 23173542551. The reversal of 23173542547 is 74524537132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23173542547 - 2⁷ = 23173542419 is a prime.

It is a super-3 number, since 3×23173542547³ (a number of 32 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (23173542541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11586771273 + 11586771274.

It is an arithmetic number, because the mean of its divisors is an integer number (11586771274).

Almost surely, 2^23173542547 is an apocalyptic number.

23173542547 is a deficient number, since it is larger than the sum of its proper divisors (1).

23173542547 is an equidigital number, since it uses as much as digits as its factorization.

23173542547 is an evil number, because the sum of its binary digits is even.

The product of its digits is 705600, while the sum is 43.

The spelling of 23173542547 in words is "twenty-three billion, one hundred seventy-three million, five hundred forty-two thousand, five hundred forty-seven".