84638634271422 has 64 divisors (see below), whose sum is σ = 211622044483584. Its totient is φ = 21924158732640.

The previous prime is 84638634271397. The next prime is 84638634271439. The reversal of 84638634271422 is 22417243683648.

It is a super-2 number, since 2×84638634271422² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 249422418 + ... + 249761525.

It is an arithmetic number, because the mean of its divisors is an integer number (3306594445056).

Almost surely, 2^{84638634271422} is an apocalyptic number.

84638634271422 is an abundant number, since it is smaller than the sum of its proper divisors (126983410212162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

84638634271422 is a wasteful number, since it uses less digits than its factorization.

84638634271422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499184333.

The product of its digits is 74317824, while the sum is 60.

The spelling of 84638634271422 in words is "eighty-four trillion, six hundred thirty-eight billion, six hundred thirty-four million, two hundred seventy-one thousand, four hundred twenty-two".