381634822207 has 4 divisors (see below), whose sum is σ = 381703086576. Its totient is φ = 381566557840.

The previous prime is 381634822199. The next prime is 381634822237. The reversal of 381634822207 is 702228436183.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 702228436183 = 2011 ⋅349193653.

It is a cyclic number.

It is not a de Polignac number, because 381634822207 - 2³ = 381634822199 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 (381634822237) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34123798 + ... + 34134979.

It is an arithmetic number, because the mean of its divisors is an integer number (95425771644).

Almost surely, 2^381634822207 is an apocalyptic number.

381634822207 is a deficient number, since it is larger than the sum of its proper divisors (68264369).

381634822207 is an equidigital number, since it uses as much as digits as its factorization.

381634822207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68264368.

The product of its (nonzero) digits is 774144, while the sum is 46.

The spelling of 381634822207 in words is "three hundred eighty-one billion, six hundred thirty-four million, eight hundred twenty-two thousand, two hundred seven".