18782377344 has 96 divisors (see below), whose sum is σ = 56892958200. Its totient is φ = 5931270144.

The previous prime is 18782377343. The next prime is 18782377357. The reversal of 18782377344 is 44377328781.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18782377343) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 407169 + ... + 450944.

Almost surely, 2^18782377344 is an apocalyptic number.

It is an amenable number.

18782377344 is an abundant number, since it is smaller than the sum of its proper divisors (38110580856).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

18782377344 is a wasteful number, since it uses less digits than its factorization.

18782377344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858152 (or 858137 counting only the distinct ones).

The product of its digits is 6322176, while the sum is 54.

The spelling of 18782377344 in words is "eighteen billion, seven hundred eighty-two million, three hundred seventy-seven thousand, three hundred forty-four".