77825532803 has 2 divisors, whose sum is σ = 77825532804. Its totient is φ = 77825532802.

The previous prime is 77825532779. The next prime is 77825532809. The reversal of 77825532803 is 30823552877.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77825532803 - 2¹⁶ = 77825467267 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (77825532809) 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 as a sum of consecutive naturals, namely, 38912766401 + 38912766402.

It is an arithmetic number, because the mean of its divisors is an integer number (38912766402).

Almost surely, 2^77825532803 is an apocalyptic number.

77825532803 is a deficient number, since it is larger than the sum of its proper divisors (1).

77825532803 is an equidigital number, since it uses as much as digits as its factorization.

77825532803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2822400, while the sum is 50.

The spelling of 77825532803 in words is "seventy-seven billion, eight hundred twenty-five million, five hundred thirty-two thousand, eight hundred three".