77212322771 has 2 divisors, whose sum is σ = 77212322772. Its totient is φ = 77212322770.

The previous prime is 77212322741. The next prime is 77212322779. The reversal of 77212322771 is 17722321277.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77212322771 - 2³⁴ = 60032453587 is a prime.

It is not a weakly prime, because it can be changed into another prime (77212322779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38606161385 + 38606161386.

It is an arithmetic number, because the mean of its divisors is an integer number (38606161386).

Almost surely, 2^77212322771 is an apocalyptic number.

77212322771 is a deficient number, since it is larger than the sum of its proper divisors (1).

77212322771 is an equidigital number, since it uses as much as digits as its factorization.

77212322771 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 115248, while the sum is 41.

The spelling of 77212322771 in words is "seventy-seven billion, two hundred twelve million, three hundred twenty-two thousand, seven hundred seventy-one".