2765666077 has 4 divisors (see below), whose sum is σ = 2777849856. Its totient is φ = 2753482300.

The previous prime is 2765666069. The next prime is 2765666107. The reversal of 2765666077 is 7706665672.

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 a cyclic number.

It is not a de Polignac number, because 2765666077 - 2³ = 2765666069 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 (2765666017) 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, 6091549 + ... + 6092002.

It is an arithmetic number, because the mean of its divisors is an integer number (694462464).

Almost surely, 2^2765666077 is an apocalyptic number.

It is an amenable number.

2765666077 is a deficient number, since it is larger than the sum of its proper divisors (12183779).

2765666077 is a wasteful number, since it uses less digits than its factorization.

2765666077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12183778.

The product of its (nonzero) digits is 4445280, while the sum is 52.

The square root of 2765666077 is about 52589.6004643504. The cubic root of 2765666077 is about 1403.6750513866.

The spelling of 2765666077 in words is "two billion, seven hundred sixty-five million, six hundred sixty-six thousand, seventy-seven".