83195861880 has 64 divisors (see below), whose sum is σ = 257638809600. Its totient is φ = 21469898880.

The previous prime is 83195861873. The next prime is 83195861897. The reversal of 83195861880 is 8816859138.

It is a happy number.

It is a super-3 number, since 3×83195861880³ (a number of 34 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 83195861880.

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, 11178520 + ... + 11185959.

It is an arithmetic number, because the mean of its divisors is an integer number (4025606400).

Almost surely, 2^83195861880 is an apocalyptic number.

It is an amenable number.

83195861880 is an abundant number, since it is smaller than the sum of its proper divisors (174442947720).

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

83195861880 is a wasteful number, since it uses less digits than its factorization.

83195861880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22364524 (or 22364520 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 57.

The spelling of 83195861880 in words is "eighty-three billion, one hundred ninety-five million, eight hundred sixty-one thousand, eight hundred eighty".