77654489711 has 2 divisors, whose sum is σ = 77654489712. Its totient is φ = 77654489710.

The previous prime is 77654489683. The next prime is 77654489777. The reversal of 77654489711 is 11798445677.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77654489711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77654480711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38827244855 + 38827244856.

It is an arithmetic number, because the mean of its divisors is an integer number (38827244856).

Almost surely, 2^77654489711 is an apocalyptic number.

77654489711 is a deficient number, since it is larger than the sum of its proper divisors (1).

77654489711 is an equidigital number, since it uses as much as digits as its factorization.

77654489711 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11854080, while the sum is 59.

The spelling of 77654489711 in words is "seventy-seven billion, six hundred fifty-four million, four hundred eighty-nine thousand, seven hundred eleven".