18344501744 has 20 divisors (see below), whose sum is σ = 36043072560. Its totient is φ = 9043063680.

The previous prime is 18344501743. The next prime is 18344501779. The reversal of 18344501744 is 44710544381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18344501743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8073029 + ... + 8075300.

It is an arithmetic number, because the mean of its divisors is an integer number (1802153628).

Almost surely, 2^18344501744 is an apocalyptic number.

It is an amenable number.

18344501744 is a deficient number, since it is larger than the sum of its proper divisors (17698570816).

18344501744 is a wasteful number, since it uses less digits than its factorization.

18344501744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16148408 (or 16148402 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 41.

The spelling of 18344501744 in words is "eighteen billion, three hundred forty-four million, five hundred one thousand, seven hundred forty-four".