381840195996 has 72 divisors (see below), whose sum is σ = 1151054521344. Its totient is φ = 104353840800.

The previous prime is 381840195977. The next prime is 381840196021. The reversal of 381840195996 is 699591048183.

381840195996 is a `hidden beast` number, since 38 + 1 + 8 + 4 + 0 + 1 + 9 + 599 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 32934180 + ... + 32945771.

It is an arithmetic number, because the mean of its divisors is an integer number (15986868352).

Almost surely, 2^381840195996 is an apocalyptic number.

381840195996 is a gapful number since it is divisible by the number (36) formed by its first and last digit.

It is an amenable number.

381840195996 is an abundant number, since it is smaller than the sum of its proper divisors (769214325348).

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

381840195996 is a wasteful number, since it uses less digits than its factorization.

381840195996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65879991 (or 65879986 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 63.

The spelling of 381840195996 in words is "three hundred eighty-one billion, eight hundred forty million, one hundred ninety-five thousand, nine hundred ninety-six".