381121346446 has 16 divisors (see below), whose sum is σ = 614574178560. Its totient is φ = 176690074680.

The previous prime is 381121346443. The next prime is 381121346471. The reversal of 381121346446 is 644643121183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381121346443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 106695120 + ... + 106698691.

It is an arithmetic number, because the mean of its divisors is an integer number (38410886160).

Almost surely, 2^381121346446 is an apocalyptic number.

381121346446 is a deficient number, since it is larger than the sum of its proper divisors (233452832114).

381121346446 is a wasteful number, since it uses less digits than its factorization.

381121346446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213393879.

The product of its digits is 331776, while the sum is 43.

The spelling of 381121346446 in words is "three hundred eighty-one billion, one hundred twenty-one million, three hundred forty-six thousand, four hundred forty-six".