77760803617871 has 16 divisors (see below), whose sum is σ = 85230024435360. Its totient is φ = 70358711009280.

The previous prime is 77760803617859. The next prime is 77760803617927. The reversal of 77760803617871 is 17871630806777.

It is a cyclic number.

It is not a de Polignac number, because 77760803617871 - 2¹⁴ = 77760803601487 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77760803617801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7860476 + ... + 14741393.

It is an arithmetic number, because the mean of its divisors is an integer number (5326876527210).

Almost surely, 2^{77760803617871} is an apocalyptic number.

77760803617871 is a deficient number, since it is larger than the sum of its proper divisors (7469220817489).

77760803617871 is a wasteful number, since it uses less digits than its factorization.

77760803617871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22603354.

The product of its (nonzero) digits is 116169984, while the sum is 68.

The spelling of 77760803617871 in words is "seventy-seven trillion, seven hundred sixty billion, eight hundred three million, six hundred seventeen thousand, eight hundred seventy-one".