381177325909 has 32 divisors (see below), whose sum is σ = 408329994240. Its totient is φ = 355170816000.

The previous prime is 381177325891. The next prime is 381177325913. The reversal of 381177325909 is 909523771183.

It is a cyclic number.

It is not a de Polignac number, because 381177325909 - 2⁵ = 381177325877 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 381177325909.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381177325979) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 53300484 + ... + 53307634.

It is an arithmetic number, because the mean of its divisors is an integer number (12760312320).

Almost surely, 2^381177325909 is an apocalyptic number.

It is an amenable number.

381177325909 is a deficient number, since it is larger than the sum of its proper divisors (27152668331).

381177325909 is a wasteful number, since it uses less digits than its factorization.

381177325909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7701.

The product of its (nonzero) digits is 2857680, while the sum is 55.

The spelling of 381177325909 in words is "three hundred eighty-one billion, one hundred seventy-seven million, three hundred twenty-five thousand, nine hundred nine".