77825532833 has 4 divisors (see below), whose sum is σ = 78810666240. Its totient is φ = 76840399428.

The previous prime is 77825532809. The next prime is 77825532877. The reversal of 77825532833 is 33823552877.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77825532833 - 2¹⁰ = 77825531809 is a prime.

It is a super-2 number, since 2×77825532833² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77825532803) 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 3 ways as a sum of consecutive naturals, for example, 492566585 + ... + 492566742.

It is an arithmetic number, because the mean of its divisors is an integer number (19702666560).

Almost surely, 2^77825532833 is an apocalyptic number.

It is an amenable number.

77825532833 is a deficient number, since it is larger than the sum of its proper divisors (985133407).

77825532833 is an equidigital number, since it uses as much as digits as its factorization.

77825532833 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 985133406.

The product of its digits is 8467200, while the sum is 53.

The spelling of 77825532833 in words is "seventy-seven billion, eight hundred twenty-five million, five hundred thirty-two thousand, eight hundred thirty-three".