77667677071 has 2 divisors, whose sum is σ = 77667677072. Its totient is φ = 77667677070.

The previous prime is 77667677053. The next prime is 77667677083. The reversal of 77667677071 is 17077676677.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77667677071 - 2³⁵ = 43307938703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77667657071) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38833838535 + 38833838536.

It is an arithmetic number, because the mean of its divisors is an integer number (38833838536).

Almost surely, 2^77667677071 is an apocalyptic number.

77667677071 is a deficient number, since it is larger than the sum of its proper divisors (1).

77667677071 is an equidigital number, since it uses as much as digits as its factorization.

77667677071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25412184, while the sum is 61.

The spelling of 77667677071 in words is "seventy-seven billion, six hundred sixty-seven million, six hundred seventy-seven thousand, seventy-one".