83518454340 has 144 divisors (see below), whose sum is σ = 256086300288. Its totient is φ = 22030589952.

The previous prime is 83518454317. The next prime is 83518454347. The reversal of 83518454340 is 4345481538.

83518454340 is a `hidden beast` number, since 8 + 35 + 184 + 5 + 434 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (83518454347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21374667 + ... + 21378573.

Almost surely, 2^83518454340 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 83518454340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128043150144).

83518454340 is an abundant number, since it is smaller than the sum of its proper divisors (172567845948).

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

83518454340 is a wasteful number, since it uses less digits than its factorization.

83518454340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5178 (or 5173 counting only the distinct ones).

The product of its (nonzero) digits is 921600, while the sum is 45.

The spelling of 83518454340 in words is "eighty-three billion, five hundred eighteen million, four hundred fifty-four thousand, three hundred forty".