17899405429 has 2 divisors, whose sum is σ = 17899405430. Its totient is φ = 17899405428.

The previous prime is 17899405399. The next prime is 17899405457. The reversal of 17899405429 is 92450499871.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15769582929 + 2129822500 = 125577^2 + 46150^2 .

It is a cyclic number.

It is not a de Polignac number, because 17899405429 - 2¹³ = 17899397237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (17899402429) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8949702714 + 8949702715.

It is an arithmetic number, because the mean of its divisors is an integer number (8949702715).

Almost surely, 2^17899405429 is an apocalyptic number.

It is an amenable number.

17899405429 is a deficient number, since it is larger than the sum of its proper divisors (1).

17899405429 is an equidigital number, since it uses as much as digits as its factorization.

17899405429 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6531840, while the sum is 58.

The spelling of 17899405429 in words is "seventeen billion, eight hundred ninety-nine million, four hundred five thousand, four hundred twenty-nine".