13077371777 has 4 divisors (see below), whose sum is σ = 13094556996. Its totient is φ = 13060186560.

The previous prime is 13077371773. The next prime is 13077371807. The reversal of 13077371777 is 77717377031.

13077371777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1866585616 + 11210786161 = 43204^2 + 105881^2 .

It is a cyclic number.

It is not a de Polignac number, because 13077371777 - 2² = 13077371773 is a prime.

It is a super-2 number, since 2×13077371777² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13077371773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8591468 + ... + 8592989.

It is an arithmetic number, because the mean of its divisors is an integer number (3273639249).

Almost surely, 2^13077371777 is an apocalyptic number.

It is an amenable number.

13077371777 is a deficient number, since it is larger than the sum of its proper divisors (17185219).

13077371777 is an equidigital number, since it uses as much as digits as its factorization.

13077371777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17185218.

The product of its (nonzero) digits is 1058841, while the sum is 50.

The spelling of 13077371777 in words is "thirteen billion, seventy-seven million, three hundred seventy-one thousand, seven hundred seventy-seven".