83850479520 has 96 divisors (see below), whose sum is σ = 264506860800. Its totient is φ = 22328140800.

The previous prime is 83850479519. The next prime is 83850479543. The reversal of 83850479520 is 2597405838.

It is a tau number, because it is divible by the number of its divisors (96).

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, 211881 + ... + 461079.

It is an arithmetic number, because the mean of its divisors is an integer number (2755279800).

Almost surely, 2^83850479520 is an apocalyptic number.

83850479520 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 83850479520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (132253430400).

83850479520 is an abundant number, since it is smaller than the sum of its proper divisors (180656381280).

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

83850479520 is a wasteful number, since it uses less digits than its factorization.

83850479520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249918 (or 249910 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 51.

The spelling of 83850479520 in words is "eighty-three billion, eight hundred fifty million, four hundred seventy-nine thousand, five hundred twenty".