77086154077 has 2 divisors, whose sum is σ = 77086154078. Its totient is φ = 77086154076.

The previous prime is 77086154069. The next prime is 77086154081. The reversal of 77086154077 is 77045168077.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 43806908601 + 33279245476 = 209301^2 + 182426^2 .

It is a cyclic number.

It is not a de Polignac number, because 77086154077 - 2³ = 77086154069 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77086154177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38543077038 + 38543077039.

It is an arithmetic number, because the mean of its divisors is an integer number (38543077039).

Almost surely, 2^77086154077 is an apocalyptic number.

It is an amenable number.

77086154077 is a deficient number, since it is larger than the sum of its proper divisors (1).

77086154077 is an equidigital number, since it uses as much as digits as its factorization.

77086154077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304960, while the sum is 52.

The spelling of 77086154077 in words is "seventy-seven billion, eighty-six million, one hundred fifty-four thousand, seventy-seven".