83946539040 has 384 divisors, whose sum is σ = 326652383232. Its totient is φ = 17646612480.

The previous prime is 83946539021. The next prime is 83946539041. The reversal of 83946539040 is 4093564938.

It is not an unprimeable number, because it can be changed into a prime (83946539041) 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, 12358045 + ... + 12364835.

It is an arithmetic number, because the mean of its divisors is an integer number (850657248).

Almost surely, 2^83946539040 is an apocalyptic number.

83946539040 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 83946539040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163326191616).

83946539040 is an abundant number, since it is smaller than the sum of its proper divisors (242705844192).

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

83946539040 is a wasteful number, since it uses less digits than its factorization.

83946539040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7112 (or 7104 counting only the distinct ones).

The product of its (nonzero) digits is 2799360, while the sum is 51.

The spelling of 83946539040 in words is "eighty-three billion, nine hundred forty-six million, five hundred thirty-nine thousand, forty".