18341732019 has 32 divisors (see below), whose sum is σ = 27419339584. Its totient is φ = 10831656960.

The previous prime is 18341731957. The next prime is 18341732027. The reversal of 18341732019 is 91023714381.

It is not a de Polignac number, because 18341732019 - 2⁸ = 18341731763 is a prime.

It is a super-2 number, since 2×18341732019² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (18341732119) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18279 + ... + 192399.

It is an arithmetic number, because the mean of its divisors is an integer number (856854362).

Almost surely, 2^18341732019 is an apocalyptic number.

18341732019 is a deficient number, since it is larger than the sum of its proper divisors (9077607565).

18341732019 is a wasteful number, since it uses less digits than its factorization.

18341732019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174247.

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 18341732019 in words is "eighteen billion, three hundred forty-one million, seven hundred thirty-two thousand, nineteen".