2135774465 has 16 divisors (see below), whose sum is σ = 2809987200. Its totient is φ = 1545477120.

The previous prime is 2135774437. The next prime is 2135774471. The reversal of 2135774465 is 5644775312.

It is a happy number.

It is not a de Polignac number, because 2135774465 - 2¹⁸ = 2135512321 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86624 + ... + 108513.

It is an arithmetic number, because the mean of its divisors is an integer number (175624200).

Almost surely, 2^2135774465 is an apocalyptic number.

It is an amenable number.

2135774465 is a deficient number, since it is larger than the sum of its proper divisors (674212735).

2135774465 is a wasteful number, since it uses less digits than its factorization.

2135774465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195352.

The product of its digits is 705600, while the sum is 44.

The square root of 2135774465 is about 46214.4400052624. The cubic root of 2135774465 is about 1287.8100103704.

The spelling of 2135774465 in words is "two billion, one hundred thirty-five million, seven hundred seventy-four thousand, four hundred sixty-five".