18292409123 has 2 divisors, whose sum is σ = 18292409124. Its totient is φ = 18292409122.

The previous prime is 18292409111. The next prime is 18292409159. The reversal of 18292409123 is 32190429281.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-18292409123 is a prime.

It is a super-2 number, since 2×18292409123² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (18292409323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9146204561 + 9146204562.

It is an arithmetic number, because the mean of its divisors is an integer number (9146204562).

Almost surely, 2^18292409123 is an apocalyptic number.

18292409123 is a deficient number, since it is larger than the sum of its proper divisors (1).

18292409123 is an equidigital number, since it uses as much as digits as its factorization.

18292409123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62208, while the sum is 41.

The spelling of 18292409123 in words is "eighteen billion, two hundred ninety-two million, four hundred nine thousand, one hundred twenty-three".