2271379365 has 24 divisors (see below), whose sum is σ = 3957471960. Its totient is φ = 1205121024.

The previous prime is 2271379343. The next prime is 2271379373. The reversal of 2271379365 is 5639731722.

2271379365 is a `hidden beast` number, since 2 + 271 + 379 + 3 + 6 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 9235521 + 2262143844 = 3039^2 + 47562^2 .

It is not a de Polignac number, because 2271379365 - 2²³ = 2262990757 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 2271379365.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 122080 + ... + 139449.

It is an arithmetic number, because the mean of its divisors is an integer number (164894665).

Almost surely, 2^2271379365 is an apocalyptic number.

It is an amenable number.

2271379365 is a deficient number, since it is larger than the sum of its proper divisors (1686092595).

2271379365 is a wasteful number, since it uses less digits than its factorization.

2271379365 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261733 (or 261730 counting only the distinct ones).

The product of its digits is 476280, while the sum is 45.

The square root of 2271379365 is about 47658.9903900618. The cubic root of 2271379365 is about 1314.5079751681.

The spelling of 2271379365 in words is "two billion, two hundred seventy-one million, three hundred seventy-nine thousand, three hundred sixty-five".