77212322741 has 2 divisors, whose sum is σ = 77212322742. Its totient is φ = 77212322740.

The previous prime is 77212322731. The next prime is 77212322771. The reversal of 77212322741 is 14722321277.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73037224516 + 4175098225 = 270254^2 + 64615^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77212322741 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77212322695 and 77212322704.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77212322711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38606161370 + 38606161371.

It is an arithmetic number, because the mean of its divisors is an integer number (38606161371).

Almost surely, 2^77212322741 is an apocalyptic number.

It is an amenable number.

77212322741 is a deficient number, since it is larger than the sum of its proper divisors (1).

77212322741 is an equidigital number, since it uses as much as digits as its factorization.

77212322741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 65856, while the sum is 38.

The spelling of 77212322741 in words is "seventy-seven billion, two hundred twelve million, three hundred twenty-two thousand, seven hundred forty-one".