381427133723 has 8 divisors (see below), whose sum is σ = 403869810960. Its totient is φ = 358985099520.

The previous prime is 381427133713. The next prime is 381427133749. The reversal of 381427133723 is 327331724183.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 381427133723 - 2³⁴ = 364247264539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381427133713) 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, 1631408 + ... + 1850498.

It is an arithmetic number, because the mean of its divisors is an integer number (50483726370).

Almost surely, 2^381427133723 is an apocalyptic number.

381427133723 is a deficient number, since it is larger than the sum of its proper divisors (22442677237).

381427133723 is a wasteful number, since it uses less digits than its factorization.

381427133723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321517.

The product of its digits is 508032, while the sum is 44.

The spelling of 381427133723 in words is "three hundred eighty-one billion, four hundred twenty-seven million, one hundred thirty-three thousand, seven hundred twenty-three".