381223316672 has 56 divisors (see below), whose sum is σ = 868696703040. Its totient is φ = 164163144960.

The previous prime is 381223316641. The next prime is 381223316681. The reversal of 381223316672 is 276613322183.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (44).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14236898 + ... + 14263649.

Almost surely, 2^381223316672 is an apocalyptic number.

381223316672 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

381223316672 is an abundant number, since it is smaller than the sum of its proper divisors (487473386368).

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

381223316672 is a wasteful number, since it uses less digits than its factorization.

381223316672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28500589 (or 28500579 counting only the distinct ones).

The product of its digits is 435456, while the sum is 44.

The spelling of 381223316672 in words is "three hundred eighty-one billion, two hundred twenty-three million, three hundred sixteen thousand, six hundred seventy-two".