83144621244 has 24 divisors (see below), whose sum is σ = 194836758480. Its totient is φ = 27595924864.

The previous prime is 83144621237. The next prime is 83144621257. The reversal of 83144621244 is 44212644138.

It is a super-2 number, since 2×83144621244² (a number of 23 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 7 ways as a sum of consecutive naturals, for example, 14865699 + ... + 14871290.

It is an arithmetic number, because the mean of its divisors is an integer number (8118198270).

Almost surely, 2^83144621244 is an apocalyptic number.

It is an amenable number.

83144621244 is an abundant number, since it is smaller than the sum of its proper divisors (111692137236).

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

83144621244 is a wasteful number, since it uses less digits than its factorization.

83144621244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29737229 (or 29737227 counting only the distinct ones).

The product of its digits is 147456, while the sum is 39.

The spelling of 83144621244 in words is "eighty-three billion, one hundred forty-four million, six hundred twenty-one thousand, two hundred forty-four".