102075777077 has 2 divisors, whose sum is σ = 102075777078. Its totient is φ = 102075777076.

The previous prime is 102075777019. The next prime is 102075777091. The reversal of 102075777077 is 770777570201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100570802641 + 1504974436 = 317129^2 + 38794^2 .

It is a cyclic number.

It is not a de Polignac number, because 102075777077 - 2³² = 97780809781 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102075777017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51037888538 + 51037888539.

It is an arithmetic number, because the mean of its divisors is an integer number (51037888539).

Almost surely, 2^102075777077 is an apocalyptic number.

It is an amenable number.

102075777077 is a deficient number, since it is larger than the sum of its proper divisors (1).

102075777077 is an equidigital number, since it uses as much as digits as its factorization.

102075777077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1176490, while the sum is 50.

The spelling of 102075777077 in words is "one hundred two billion, seventy-five million, seven hundred seventy-seven thousand, seventy-seven".