83182799781 has 24 divisors (see below), whose sum is σ = 122211835200. Its totient is φ = 54511655616.

The previous prime is 83182799681. The next prime is 83182799797. The reversal of 83182799781 is 18799728138.

It is not a de Polignac number, because 83182799781 - 2⁹ = 83182799269 is a prime.

It is a super-2 number, since 2×83182799781² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (83182799681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 131136 + ... + 428441.

It is an arithmetic number, because the mean of its divisors is an integer number (5092159800).

Almost surely, 2^83182799781 is an apocalyptic number.

It is an amenable number.

83182799781 is a deficient number, since it is larger than the sum of its proper divisors (39029035419).

83182799781 is a wasteful number, since it uses less digits than its factorization.

83182799781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 559865 (or 559862 counting only the distinct ones).

The product of its digits is 12192768, while the sum is 63.

The spelling of 83182799781 in words is "eighty-three billion, one hundred eighty-two million, seven hundred ninety-nine thousand, seven hundred eighty-one".