381953226912 has 96 divisors (see below), whose sum is σ = 1061321849280. Its totient is φ = 120068659200.

The previous prime is 381953226911. The next prime is 381953226929. The reversal of 381953226912 is 219622359183.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×381953226912² (a number of 24 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (381953226911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1475589 + ... + 1715012.

It is an arithmetic number, because the mean of its divisors is an integer number (11055435930).

Almost surely, 2^381953226912 is an apocalyptic number.

381953226912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

381953226912 is an abundant number, since it is smaller than the sum of its proper divisors (679368622368).

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

381953226912 is a wasteful number, since it uses less digits than its factorization.

381953226912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3190686 (or 3190678 counting only the distinct ones).

The product of its digits is 1399680, while the sum is 51.

The spelling of 381953226912 in words is "three hundred eighty-one billion, nine hundred fifty-three million, two hundred twenty-six thousand, nine hundred twelve".