381440027201 has 4 divisors (see below), whose sum is σ = 390310725552. Its totient is φ = 372569328852.

The previous prime is 381440027191. The next prime is 381440027209. The reversal of 381440027201 is 102720044183.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 381440027201 - 2²⁶ = 381372918337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (381440027209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4435349111 + ... + 4435349196.

It is an arithmetic number, because the mean of its divisors is an integer number (97577681388).

Almost surely, 2^381440027201 is an apocalyptic number.

It is an amenable number.

381440027201 is a deficient number, since it is larger than the sum of its proper divisors (8870698351).

381440027201 is an equidigital number, since it uses as much as digits as its factorization.

381440027201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8870698350.

The product of its (nonzero) digits is 10752, while the sum is 32.

The spelling of 381440027201 in words is "three hundred eighty-one billion, four hundred forty million, twenty-seven thousand, two hundred one".