17923925531 has 2 divisors, whose sum is σ = 17923925532. Its totient is φ = 17923925530.

The previous prime is 17923925521. The next prime is 17923925533. The reversal of 17923925531 is 13552932971.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 17923925531 - 2¹⁰ = 17923924507 is a prime.

It is a super-2 number, since 2×17923925531² (a number of 21 digits) contains 22 as substring.

Together with 17923925533, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (17923925533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8961962765 + 8961962766.

It is an arithmetic number, because the mean of its divisors is an integer number (8961962766).

Almost surely, 2^17923925531 is an apocalyptic number.

17923925531 is a deficient number, since it is larger than the sum of its proper divisors (1).

17923925531 is an equidigital number, since it uses as much as digits as its factorization.

17923925531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 510300, while the sum is 47.

The spelling of 17923925531 in words is "seventeen billion, nine hundred twenty-three million, nine hundred twenty-five thousand, five hundred thirty-one".