18896941368 has 24 divisors (see below), whose sum is σ = 51179216400. Its totient is φ = 6298980432.

The previous prime is 18896941363. The next prime is 18896941373. The reversal of 18896941368 is 86314969881.

18896941368 is a `hidden beast` number, since 188 + 9 + 6 + 94 + 1 + 368 = 666.

It is an interprime number because it is at equal distance from previous prime (18896941363) and next prime (18896941373).

It is a tau number, because it is divible by the number of its divisors (24).

It is a super-2 number, since 2×18896941368² (a number of 21 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18896941361) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131228688 + ... + 131228831.

It is an arithmetic number, because the mean of its divisors is an integer number (2132467350).

Almost surely, 2^18896941368 is an apocalyptic number.

18896941368 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

18896941368 is an abundant number, since it is smaller than the sum of its proper divisors (32282275032).

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

18896941368 is a wasteful number, since it uses less digits than its factorization.

18896941368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 262457531 (or 262457524 counting only the distinct ones).

The product of its digits is 17915904, while the sum is 63.

The spelling of 18896941368 in words is "eighteen billion, eight hundred ninety-six million, nine hundred forty-one thousand, three hundred sixty-eight".