2667776765 has 16 divisors (see below), whose sum is σ = 3498992640. Its totient is φ = 1943880960.

The previous prime is 2667776689. The next prime is 2667776767. The reversal of 2667776765 is 5676777662.

It is not a de Polignac number, because 2667776765 - 2¹⁶ = 2667711229 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2667776767) 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 15 ways as a sum of consecutive naturals, for example, 503585 + ... + 508854.

It is an arithmetic number, because the mean of its divisors is an integer number (218687040).

Almost surely, 2^2667776765 is an apocalyptic number.

It is an amenable number.

2667776765 is a deficient number, since it is larger than the sum of its proper divisors (831215875).

2667776765 is a wasteful number, since it uses less digits than its factorization.

2667776765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1012492.

The product of its digits is 31116960, while the sum is 59.

The square root of 2667776765 is about 51650.5253119462. The cubic root of 2667776765 is about 1386.9149468049.

The spelling of 2667776765 in words is "two billion, six hundred sixty-seven million, seven hundred seventy-six thousand, seven hundred sixty-five".