2665114789 has 4 divisors (see below), whose sum is σ = 2665313056. Its totient is φ = 2664916524.

The previous prime is 2665114787. The next prime is 2665114807. The reversal of 2665114789 is 9874115662.

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 2665114789 - 2¹ = 2665114787 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 (2665114787) 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, 77379 + ... + 106384.

It is an arithmetic number, because the mean of its divisors is an integer number (666328264).

Almost surely, 2^2665114789 is an apocalyptic number.

It is an amenable number.

2665114789 is a deficient number, since it is larger than the sum of its proper divisors (198267).

2665114789 is a wasteful number, since it uses less digits than its factorization.

2665114789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198266.

The product of its digits is 725760, while the sum is 49.

The square root of 2665114789 is about 51624.7497717907. The cubic root of 2665114789 is about 1386.4534935328.

The spelling of 2665114789 in words is "two billion, six hundred sixty-five million, one hundred fourteen thousand, seven hundred eighty-nine".