83789171040 has 384 divisors, whose sum is σ = 282175488000. Its totient is φ = 20862550016.

The previous prime is 83789171033. The next prime is 83789171041. The reversal of 83789171040 is 4017198738.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83789171041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 58226641 + ... + 58228079.

It is an arithmetic number, because the mean of its divisors is an integer number (734832000).

Almost surely, 2^83789171040 is an apocalyptic number.

83789171040 is a gapful number since it is divisible by the number (80) 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 83789171040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (141087744000).

83789171040 is an abundant number, since it is smaller than the sum of its proper divisors (198386316960).

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

83789171040 is a wasteful number, since it uses less digits than its factorization.

83789171040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1622 (or 1614 counting only the distinct ones).

The product of its (nonzero) digits is 338688, while the sum is 48.

The spelling of 83789171040 in words is "eighty-three billion, seven hundred eighty-nine million, one hundred seventy-one thousand, forty".