77286117113 has 4 divisors (see below), whose sum is σ = 77294290320. Its totient is φ = 77277943908.

The previous prime is 77286117101. The next prime is 77286117121. The reversal of 77286117113 is 31171168277.

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-77286117113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77286117173) 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, 4072403 + ... + 4091336.

It is an arithmetic number, because the mean of its divisors is an integer number (19323572580).

Almost surely, 2^77286117113 is an apocalyptic number.

It is an amenable number.

77286117113 is a deficient number, since it is larger than the sum of its proper divisors (8173207).

77286117113 is an equidigital number, since it uses as much as digits as its factorization.

77286117113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8173206.

The product of its digits is 98784, while the sum is 44.

The spelling of 77286117113 in words is "seventy-seven billion, two hundred eighty-six million, one hundred seventeen thousand, one hundred thirteen".