83822179672 has 72 divisors (see below), whose sum is σ = 199492269660. Its totient is φ = 32650584960.

The previous prime is 83822179643. The next prime is 83822179697. The reversal of 83822179672 is 27697122838.

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 17 ways as a sum of consecutive naturals, for example, 19009404 + ... + 19013812.

Almost surely, 2^83822179672 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 83822179672, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (99746134830).

83822179672 is an abundant number, since it is smaller than the sum of its proper divisors (115670089988).

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

83822179672 is an equidigital number, since it uses as much as digits as its factorization.

83822179672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8849 (or 4429 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 55.

The spelling of 83822179672 in words is "eighty-three billion, eight hundred twenty-two million, one hundred seventy-nine thousand, six hundred seventy-two".