83539681632450 has 36 divisors (see below), whose sum is σ = 224443277987058. Its totient is φ = 22277248435200.

The previous prime is 83539681632377. The next prime is 83539681632479. The reversal of 83539681632450 is 5423618693538.

It is a happy number.

83539681632450 is a `hidden beast` number, since 8 + 3 + 53 + 96 + 8 + 16 + 32 + 450 = 666.

It can be written as a sum of positive squares in 3 ways, for example, as 79972580822121 + 3567100810329 = 8942739^2 + 1888677^2 .

It is a super-2 number, since 2×83539681632450² (a number of 29 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 92821868031 + ... + 92821868930.

Almost surely, 2^{83539681632450} is an apocalyptic number.

83539681632450 is an abundant number, since it is smaller than the sum of its proper divisors (140903596354608).

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

83539681632450 is a wasteful number, since it uses less digits than its factorization.

83539681632450 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185643736979 (or 185643736971 counting only the distinct ones).

The product of its (nonzero) digits is 111974400, while the sum is 63.

The spelling of 83539681632450 in words is "eighty-three trillion, five hundred thirty-nine billion, six hundred eighty-one million, six hundred thirty-two thousand, four hundred fifty".