381191884373 has 16 divisors (see below), whose sum is σ = 398349759600. Its totient is φ = 364303564800.

The previous prime is 381191884363. The next prime is 381191884387. The reversal of 381191884373 is 373488191183.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 80688379249 + 300503505124 = 284057^2 + 548182^2 .

It is a cyclic number.

It is not a de Polignac number, because 381191884373 - 2¹⁶ = 381191818837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (381191884363) 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, 12089813 + ... + 12121301.

It is an arithmetic number, because the mean of its divisors is an integer number (24896859975).

Almost surely, 2^381191884373 is an apocalyptic number.

It is an amenable number.

381191884373 is a deficient number, since it is larger than the sum of its proper divisors (17157875227).

381191884373 is a wasteful number, since it uses less digits than its factorization.

381191884373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35752.

The product of its digits is 3483648, while the sum is 56.

The spelling of 381191884373 in words is "three hundred eighty-one billion, one hundred ninety-one million, eight hundred eighty-four thousand, three hundred seventy-three".