77746034751877 has 2 divisors, whose sum is σ = 77746034751878. Its totient is φ = 77746034751876.

The previous prime is 77746034751863. The next prime is 77746034751883. The reversal of 77746034751877 is 77815743064777.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 77464483534881 + 281551216996 = 8801391^2 + 530614^2 .

It is a cyclic number.

It is not a de Polignac number, because 77746034751877 - 2¹¹ = 77746034749829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77746034751577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38873017375938 + 38873017375939.

It is an arithmetic number, because the mean of its divisors is an integer number (38873017375939).

Almost surely, 2^{77746034751877} is an apocalyptic number.

It is an amenable number.

77746034751877 is a deficient number, since it is larger than the sum of its proper divisors (1).

77746034751877 is an equidigital number, since it uses as much as digits as its factorization.

77746034751877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1355316480, while the sum is 73.

The spelling of 77746034751877 in words is "seventy-seven trillion, seven hundred forty-six billion, thirty-four million, seven hundred fifty-one thousand, eight hundred seventy-seven".