83078644830447 has 16 divisors (see below), whose sum is σ = 127063174249472. Its totient is φ = 47298332319840.

The previous prime is 83078644830439. The next prime is 83078644830469. The reversal of 83078644830447 is 74403844687038.

It is not a de Polignac number, because 83078644830447 - 2³ = 83078644830439 is a prime.

It is a super-2 number, since 2×83078644830447² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83078644830347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7299119668 + ... + 7299131049.

It is an arithmetic number, because the mean of its divisors is an integer number (7941448390592).

Almost surely, 2^{83078644830447} is an apocalyptic number.

83078644830447 is a deficient number, since it is larger than the sum of its proper divisors (43984529419025).

83078644830447 is a wasteful number, since it uses less digits than its factorization.

83078644830447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14598250998.

The product of its (nonzero) digits is 346816512, while the sum is 66.

The spelling of 83078644830447 in words is "eighty-three trillion, seventy-eight billion, six hundred forty-four million, eight hundred thirty thousand, four hundred forty-seven".