18797048629 has 2 divisors, whose sum is σ = 18797048630. Its totient is φ = 18797048628.

The previous prime is 18797048603. The next prime is 18797048659. The reversal of 18797048629 is 92684079781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18119852100 + 677196529 = 134610^2 + 26023^2 .

It is a cyclic number.

It is not a de Polignac number, because 18797048629 - 2²³ = 18788660021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18797048659) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9398524314 + 9398524315.

It is an arithmetic number, because the mean of its divisors is an integer number (9398524315).

Almost surely, 2^18797048629 is an apocalyptic number.

It is an amenable number.

18797048629 is a deficient number, since it is larger than the sum of its proper divisors (1).

18797048629 is an equidigital number, since it uses as much as digits as its factorization.

18797048629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12192768, while the sum is 61.

The spelling of 18797048629 in words is "eighteen billion, seven hundred ninety-seven million, forty-eight thousand, six hundred twenty-nine".