381918293098 has 16 divisors (see below), whose sum is σ = 573213277224. Its totient is φ = 190847240640.

The previous prime is 381918293093. The next prime is 381918293137. The reversal of 381918293098 is 890392819183.

It can be written as a sum of positive squares in 4 ways, for example, as 171050897889 + 210867395209 = 413583^2 + 459203^2 .

It is not an unprimeable number, because it can be changed into a prime (381918293093) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 31977808 + ... + 31989748.

Almost surely, 2^381918293098 is an apocalyptic number.

381918293098 is a deficient number, since it is larger than the sum of its proper divisors (191294984126).

381918293098 is a wasteful number, since it uses less digits than its factorization.

381918293098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19977.

The product of its (nonzero) digits is 6718464, while the sum is 61.

The spelling of 381918293098 in words is "three hundred eighty-one billion, nine hundred eighteen million, two hundred ninety-three thousand, ninety-eight".