77090848171 has 2 divisors, whose sum is σ = 77090848172. Its totient is φ = 77090848170.

The previous prime is 77090848157. The next prime is 77090848183. The reversal of 77090848171 is 17184809077.

It is a strong prime.

It is an emirp because it is prime and its reverse (17184809077) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 77090848171 - 2⁵ = 77090848139 is a prime.

It is not a weakly prime, because it can be changed into another prime (77090848151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38545424085 + 38545424086.

It is an arithmetic number, because the mean of its divisors is an integer number (38545424086).

Almost surely, 2^77090848171 is an apocalyptic number.

77090848171 is a deficient number, since it is larger than the sum of its proper divisors (1).

77090848171 is an equidigital number, since it uses as much as digits as its factorization.

77090848171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 790272, while the sum is 52.

The spelling of 77090848171 in words is "seventy-seven billion, ninety million, eight hundred forty-eight thousand, one hundred seventy-one".