378044444581 has 8 divisors (see below), whose sum is σ = 384461726400. Its totient is φ = 371627487840.

The previous prime is 378044444527. The next prime is 378044444593. The reversal of 378044444581 is 185444440873.

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

It is a cyclic number.

It is not a de Polignac number, because 378044444581 - 2²¹ = 378042347429 is a prime.

It is a super-2 number, since 2×378044444581² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (378044444521) 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, 3927216 + ... + 4022326.

It is an arithmetic number, because the mean of its divisors is an integer number (48057715800).

Almost surely, 2^378044444581 is an apocalyptic number.

It is an amenable number.

378044444581 is a deficient number, since it is larger than the sum of its proper divisors (6417281819).

378044444581 is an equidigital number, since it uses as much as digits as its factorization.

378044444581 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162539.

The product of its (nonzero) digits is 6881280, while the sum is 52.

The spelling of 378044444581 in words is "three hundred seventy-eight billion, forty-four million, four hundred forty-four thousand, five hundred eighty-one".