1804147742269 has 2 divisors, whose sum is σ = 1804147742270. Its totient is φ = 1804147742268.

The previous prime is 1804147742263. The next prime is 1804147742323. The reversal of 1804147742269 is 9622477414081.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1696146779044 + 108000963225 = 1302362^2 + 328635^2 .

It is a cyclic number.

It is not a de Polignac number, because 1804147742269 - 2²⁹ = 1803610871357 is a prime.

It is a super-2 number, since 2×1804147742269² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1804147742263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 902073871134 + 902073871135.

It is an arithmetic number, because the mean of its divisors is an integer number (902073871135).

Almost surely, 2^{1804147742269} is an apocalyptic number.

It is an amenable number.

1804147742269 is a deficient number, since it is larger than the sum of its proper divisors (1).

1804147742269 is an equidigital number, since it uses as much as digits as its factorization.

1804147742269 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5419008, while the sum is 55.

The spelling of 1804147742269 in words is "one trillion, eight hundred four billion, one hundred forty-seven million, seven hundred forty-two thousand, two hundred sixty-nine".