77999960000089 has 4 divisors (see below), whose sum is σ = 78085957751824. Its totient is φ = 77913962248356.

The previous prime is 77999960000069. The next prime is 77999960000143. The reversal of 77999960000089 is 98000006999977.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77999960000089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77999959999976 and 77999960000030.

It is not an unprimeable number, because it can be changed into a prime (77999960000059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42998874507 + ... + 42998876320.

It is an arithmetic number, because the mean of its divisors is an integer number (19521489437956).

Almost surely, 2^{77999960000089} is an apocalyptic number.

It is an amenable number.

77999960000089 is a deficient number, since it is larger than the sum of its proper divisors (85997751735).

77999960000089 is an equidigital number, since it uses as much as digits as its factorization.

77999960000089 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85997751734.

The product of its (nonzero) digits is 138883248, while the sum is 73.

The spelling of 77999960000089 in words is "seventy-seven trillion, nine hundred ninety-nine billion, nine hundred sixty million, eighty-nine", and thus it is an aban number.