2775776465 has 48 divisors (see below), whose sum is σ = 4257601920. Its totient is φ = 1687756800.

The previous prime is 2775776417. The next prime is 2775776467. The reversal of 2775776465 is 5646775772.

It is a happy number.

It is not a de Polignac number, because 2775776465 - 2¹⁰ = 2775775441 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2775776465.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2775776467) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 645041 + ... + 649329.

It is an arithmetic number, because the mean of its divisors is an integer number (88700040).

Almost surely, 2^2775776465 is an apocalyptic number.

It is an amenable number.

2775776465 is a deficient number, since it is larger than the sum of its proper divisors (1481825455).

2775776465 is a wasteful number, since it uses less digits than its factorization.

2775776465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4394 (or 4353 counting only the distinct ones).

The product of its digits is 17287200, while the sum is 56.

The square root of 2775776465 is about 52685.6381284312. The cubic root of 2775776465 is about 1405.3834332139.

The spelling of 2775776465 in words is "two billion, seven hundred seventy-five million, seven hundred seventy-six thousand, four hundred sixty-five".