19413097265 has 4 divisors (see below), whose sum is σ = 23295716724. Its totient is φ = 15530477808.

The previous prime is 19413097243. The next prime is 19413097279. The reversal of 19413097265 is 56279031491.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 14552079424 + 4861017841 = 120632^2 + 69721^2 .

It is a cyclic number.

It is not a de Polignac number, because 19413097265 - 2⁸ = 19413097009 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1941309722 + ... + 1941309731.

It is an arithmetic number, because the mean of its divisors is an integer number (5823929181).

Almost surely, 2^19413097265 is an apocalyptic number.

It is an amenable number.

19413097265 is a deficient number, since it is larger than the sum of its proper divisors (3882619459).

19413097265 is an equidigital number, since it uses as much as digits as its factorization.

19413097265 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3882619458.

The product of its (nonzero) digits is 408240, while the sum is 47.

The spelling of 19413097265 in words is "nineteen billion, four hundred thirteen million, ninety-seven thousand, two hundred sixty-five".