1367777777777 has 4 divisors (see below), whose sum is σ = 1367839749120. Its totient is φ = 1367715806436.

The previous prime is 1367777777771. The next prime is 1367777777783. The reversal of 1367777777777 is 7777777777631.

It is a happy number.

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 an interprime number because it is at equal distance from previous prime (1367777777771) and next prime (1367777777783).

It is a cyclic number.

It is not a de Polignac number, because 1367777777777 - 2¹⁰ = 1367777776753 is a prime.

It is a Duffinian number.

It is a plaindrome in base 10.

It is not an unprimeable number, because it can be changed into a prime (1367777777771) 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, 30952553 + ... + 30996710.

It is an arithmetic number, because the mean of its divisors is an integer number (341959937280).

Almost surely, 2^{1367777777777} is an apocalyptic number.

It is an amenable number.

1367777777777 is a deficient number, since it is larger than the sum of its proper divisors (61971343).

1367777777777 is an equidigital number, since it uses as much as digits as its factorization.

1367777777777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61971342.

The product of its digits is 5084554482, while the sum is 80.

The spelling of 1367777777777 in words is "one trillion, three hundred sixty-seven billion, seven hundred seventy-seven million, seven hundred seventy-seven thousand, seven hundred seventy-seven".