381416747446 has 48 divisors (see below), whose sum is σ = 669582111744. Its totient is φ = 162472229136.

The previous prime is 381416747419. The next prime is 381416747447. The reversal of 381416747446 is 644747614183.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381416747447) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 14038551 + ... + 14065693.

It is an arithmetic number, because the mean of its divisors is an integer number (13949627328).

Almost surely, 2^381416747446 is an apocalyptic number.

381416747446 is a deficient number, since it is larger than the sum of its proper divisors (288165364298).

381416747446 is a wasteful number, since it uses less digits than its factorization.

381416747446 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28025 (or 28018 counting only the distinct ones).

The product of its digits is 10838016, while the sum is 55.

The spelling of 381416747446 in words is "three hundred eighty-one billion, four hundred sixteen million, seven hundred forty-seven thousand, four hundred forty-six".