2123670465 has 48 divisors (see below), whose sum is σ = 4210517376. Its totient is φ = 969984000.

The previous prime is 2123670449. The next prime is 2123670473. The reversal of 2123670465 is 5640763212.

2123670465 is a `hidden beast` number, since 2 + 123 + 6 + 70 + 465 = 666.

2123670465 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 2123670465 - 2⁴ = 2123670449 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 502210 + ... + 506420.

It is an arithmetic number, because the mean of its divisors is an integer number (87719112).

Almost surely, 2^2123670465 is an apocalyptic number.

It is an amenable number.

2123670465 is a deficient number, since it is larger than the sum of its proper divisors (2086846911).

2123670465 is a wasteful number, since it uses less digits than its factorization.

2123670465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5830 (or 5827 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 2123670465 is about 46083.2991982996. The cubic root of 2123670465 is about 1285.3726132049.

The spelling of 2123670465 in words is "two billion, one hundred twenty-three million, six hundred seventy thousand, four hundred sixty-five".