77333374441 has 2 divisors, whose sum is σ = 77333374442. Its totient is φ = 77333374440.

The previous prime is 77333374439. The next prime is 77333374477. The reversal of 77333374441 is 14447333377.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54567091216 + 22766283225 = 233596^2 + 150885^2 .

It is a cyclic number.

It is not a de Polignac number, because 77333374441 - 2¹ = 77333374439 is a prime.

Together with 77333374439, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 77333374391 and 77333374400.

It is not a weakly prime, because it can be changed into another prime (77333374541) 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, 38666687220 + 38666687221.

It is an arithmetic number, because the mean of its divisors is an integer number (38666687221).

Almost surely, 2^77333374441 is an apocalyptic number.

It is an amenable number.

77333374441 is a deficient number, since it is larger than the sum of its proper divisors (1).

77333374441 is an equidigital number, since it uses as much as digits as its factorization.

77333374441 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1778112, while the sum is 46.

The spelling of 77333374441 in words is "seventy-seven billion, three hundred thirty-three million, three hundred seventy-four thousand, four hundred forty-one".