6381081193392 has 80 divisors (see below), whose sum is σ = 18316373391360. Its totient is φ = 2126991412800.

The previous prime is 6381081193379. The next prime is 6381081193393. The reversal of 6381081193392 is 2933911801836.

6381081193392 is a `hidden beast` number, since 6 + 38 + 108 + 119 + 3 + 392 = 666.

It is a super-2 number, since 2×6381081193392² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6381081193393) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43243417 + ... + 43390727.

It is an arithmetic number, because the mean of its divisors is an integer number (228954667392).

Almost surely, 2^{6381081193392} is an apocalyptic number.

It is an amenable number.

6381081193392 is an abundant number, since it is smaller than the sum of its proper divisors (11935292197968).

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

6381081193392 is a wasteful number, since it uses less digits than its factorization.

6381081193392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247599 (or 247587 counting only the distinct ones).

The product of its (nonzero) digits is 1679616, while the sum is 54.

The spelling of 6381081193392 in words is "six trillion, three hundred eighty-one billion, eighty-one million, one hundred ninety-three thousand, three hundred ninety-two".