83771239552 has 384 divisors, whose sum is σ = 237252326400. Its totient is φ = 28531077120.

The previous prime is 83771239481. The next prime is 83771239583. The reversal of 83771239552 is 25593217738.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (52).

It is a self number, because there is not a number n which added to its sum of digits gives 83771239552.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 31646293 + ... + 31648939.

It is an arithmetic number, because the mean of its divisors is an integer number (617844600).

Almost surely, 2^83771239552 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 83771239552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (118626163200).

83771239552 is an abundant number, since it is smaller than the sum of its proper divisors (153481086848).

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

83771239552 is a wasteful number, since it uses less digits than its factorization.

83771239552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2724 (or 2699 counting only the distinct ones).

The product of its digits is 3175200, while the sum is 52.

It can be divided in two parts, 83771 and 239552, that added together give a palindrome (323323).

The spelling of 83771239552 in words is "eighty-three billion, seven hundred seventy-one million, two hundred thirty-nine thousand, five hundred fifty-two".