77760803617797 has 4 divisors (see below), whose sum is σ = 103681071490400. Its totient is φ = 51840535745196.

The previous prime is 77760803617771. The next prime is 77760803617801. The reversal of 77760803617797 is 79771630806777.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 77760803617797 - 2¹¹ = 77760803615749 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 (77760803617097) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12960133936297 + ... + 12960133936302.

It is an arithmetic number, because the mean of its divisors is an integer number (25920267872600).

Almost surely, 2^{77760803617797} is an apocalyptic number.

It is an amenable number.

77760803617797 is a deficient number, since it is larger than the sum of its proper divisors (25920267872603).

77760803617797 is a wasteful number, since it uses less digits than its factorization.

77760803617797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25920267872602.

The product of its (nonzero) digits is 914838624, while the sum is 75.

The spelling of 77760803617797 in words is "seventy-seven trillion, seven hundred sixty billion, eight hundred three million, six hundred seventeen thousand, seven hundred ninety-seven".