381427892516 has 12 divisors (see below), whose sum is σ = 728180522160. Its totient is φ = 173376314760.

The previous prime is 381427892497. The next prime is 381427892539. The reversal of 381427892516 is 615298724183.

It is a super-3 number, since 3×381427892516³ (a number of 36 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4334407826 + ... + 4334407913.

It is an arithmetic number, because the mean of its divisors is an integer number (60681710180).

Almost surely, 2^381427892516 is an apocalyptic number.

It is an amenable number.

381427892516 is a deficient number, since it is larger than the sum of its proper divisors (346752629644).

381427892516 is a wasteful number, since it uses less digits than its factorization.

381427892516 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8668815754 (or 8668815752 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 56.

The spelling of 381427892516 in words is "three hundred eighty-one billion, four hundred twenty-seven million, eight hundred ninety-two thousand, five hundred sixteen".