18277323743 has 6 divisors (see below), whose sum is σ = 21261376656. Its totient is φ = 15666277452.

The previous prime is 18277323731. The next prime is 18277323787. The reversal of 18277323743 is 34732377281.

It is a happy number.

It is not a de Polignac number, because 18277323743 - 2¹² = 18277319647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18277323143) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 186503255 + ... + 186503352.

It is an arithmetic number, because the mean of its divisors is an integer number (3543562776).

Almost surely, 2^18277323743 is an apocalyptic number.

18277323743 is a deficient number, since it is larger than the sum of its proper divisors (2984052913).

18277323743 is an equidigital number, since it uses as much as digits as its factorization.

18277323743 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 373006621 (or 373006614 counting only the distinct ones).

The product of its digits is 1185408, while the sum is 47.

The spelling of 18277323743 in words is "eighteen billion, two hundred seventy-seven million, three hundred twenty-three thousand, seven hundred forty-three".