12918492733 has 2 divisors, whose sum is σ = 12918492734. Its totient is φ = 12918492732.

The previous prime is 12918492707. The next prime is 12918492781. The reversal of 12918492733 is 33729481921.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12567979449 + 350513284 = 112107^2 + 18722^2 .

It is a cyclic number.

It is not a de Polignac number, because 12918492733 - 2²⁹ = 12381621821 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12918492703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6459246366 + 6459246367.

It is an arithmetic number, because the mean of its divisors is an integer number (6459246367).

Almost surely, 2^12918492733 is an apocalyptic number.

It is an amenable number.

12918492733 is a deficient number, since it is larger than the sum of its proper divisors (1).

12918492733 is an equidigital number, since it uses as much as digits as its factorization.

12918492733 is an evil number, because the sum of its binary digits is even.

The product of its digits is 653184, while the sum is 49.

The spelling of 12918492733 in words is "twelve billion, nine hundred eighteen million, four hundred ninety-two thousand, seven hundred thirty-three".