2132405465 has 16 divisors (see below), whose sum is σ = 2577778560. Its totient is φ = 1693359360.

The previous prime is 2132405459. The next prime is 2132405479. The reversal of 2132405465 is 5645042312.

It is not a de Polignac number, because 2132405465 - 2¹⁰ = 2132404441 is a prime.

It is a super-3 number, since 3×2132405465³ (a number of 29 digits) contains 333 as substring.

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, 841250 + ... + 843780.

It is an arithmetic number, because the mean of its divisors is an integer number (161111160).

Almost surely, 2^2132405465 is an apocalyptic number.

It is an amenable number.

2132405465 is a deficient number, since it is larger than the sum of its proper divisors (445373095).

2132405465 is a wasteful number, since it uses less digits than its factorization.

2132405465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3712.

The product of its (nonzero) digits is 28800, while the sum is 32.

The square root of 2132405465 is about 46177.9759734010. The cubic root of 2132405465 is about 1287.1325176123.

Adding to 2132405465 its reverse (5645042312), we get a palindrome (7777447777).

The spelling of 2132405465 in words is "two billion, one hundred thirty-two million, four hundred five thousand, four hundred sixty-five".