2688089077 has 4 divisors (see below), whose sum is σ = 2688196000. Its totient is φ = 2687982156.

The previous prime is 2688089071. The next prime is 2688089093. The reversal of 2688089077 is 7709808862.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2688089077 - 2³ = 2688089069 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 (2688089071) 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, 7174 + ... + 73672.

It is an arithmetic number, because the mean of its divisors is an integer number (672049000).

Almost surely, 2^2688089077 is an apocalyptic number.

It is an amenable number.

2688089077 is a deficient number, since it is larger than the sum of its proper divisors (106923).

2688089077 is an equidigital number, since it uses as much as digits as its factorization.

2688089077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106922.

The product of its (nonzero) digits is 2709504, while the sum is 55.

The square root of 2688089077 is about 51846.7846351150. The cubic root of 2688089077 is about 1390.4260166156.

It can be divided in two parts, 268808 and 9077, that added together give a triangular number (277885 = T₇₄₅).

The spelling of 2688089077 in words is "two billion, six hundred eighty-eight million, eighty-nine thousand, seventy-seven".