381415019664 has 80 divisors (see below), whose sum is σ = 1136606681088. Its totient is φ = 107957245056.

The previous prime is 381415019651. The next prime is 381415019669. The reversal of 381415019664 is 466910514183.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (381415019669) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5268552 + ... + 5340455.

Almost surely, 2^381415019664 is an apocalyptic number.

It is an amenable number.

381415019664 is an abundant number, since it is smaller than the sum of its proper divisors (755191661424).

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

381415019664 is a wasteful number, since it uses less digits than its factorization.

381415019664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10609132 (or 10609126 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 48.

The spelling of 381415019664 in words is "three hundred eighty-one billion, four hundred fifteen million, nineteen thousand, six hundred sixty-four".