77331604223 has 2 divisors, whose sum is σ = 77331604224. Its totient is φ = 77331604222.

The previous prime is 77331604193. The next prime is 77331604271. The reversal of 77331604223 is 32240613377.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 77331604223 - 2¹⁰ = 77331603199 is a prime.

It is a super-2 number, since 2×77331604223² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77331600223) 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, 38665802111 + 38665802112.

It is an arithmetic number, because the mean of its divisors is an integer number (38665802112).

Almost surely, 2^77331604223 is an apocalyptic number.

77331604223 is a deficient number, since it is larger than the sum of its proper divisors (1).

77331604223 is an equidigital number, since it uses as much as digits as its factorization.

77331604223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127008, while the sum is 38.

The spelling of 77331604223 in words is "seventy-seven billion, three hundred thirty-one million, six hundred four thousand, two hundred twenty-three".