8422631888 has 80 divisors (see below), whose sum is σ = 18012001920. Its totient is φ = 3815159040.

The previous prime is 8422631879. The next prime is 8422631933. The reversal of 8422631888 is 8881362248.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8709581 + ... + 8710547.

It is an arithmetic number, because the mean of its divisors is an integer number (225150024).

Almost surely, 2^8422631888 is an apocalyptic number.

8422631888 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 8422631888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9006000960).

8422631888 is an abundant number, since it is smaller than the sum of its proper divisors (9589370032).

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

8422631888 is a wasteful number, since it uses less digits than its factorization.

8422631888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1417 (or 1389 counting only the distinct ones).

The product of its digits is 1179648, while the sum is 50.

The square root of 8422631888 is about 91774.8979187664. The cubic root of 8422631888 is about 2034.6167089173.

The spelling of 8422631888 in words is "eight billion, four hundred twenty-two million, six hundred thirty-one thousand, eight hundred eighty-eight".