4207866505 has 12 divisors (see below), whose sum is σ = 5224528260. Its totient is φ = 3249610784.

The previous prime is 4207866493. The next prime is 4207866517. The reversal of 4207866505 is 5056687024.

It is an interprime number because it is at equal distance from previous prime (4207866493) and next prime (4207866517).

It can be written as a sum of positive squares in 2 ways, for example, as 1857265216 + 2350601289 = 43096^2 + 48483^2 .

It is not a de Polignac number, because 4207866505 - 2¹⁵ = 4207833737 is a prime.

It is a super-2 number, since 2×4207866505² = 35412281047801830050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 778422 + ... + 783808.

It is an arithmetic number, because the mean of its divisors is an integer number (435377355).

Almost surely, 2^4207866505 is an apocalyptic number.

It is an amenable number.

4207866505 is a deficient number, since it is larger than the sum of its proper divisors (1016661755).

4207866505 is an frugal number, since it uses more digits than its factorization.

4207866505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10808 (or 5421 counting only the distinct ones).

The product of its (nonzero) digits is 403200, while the sum is 43.

The square root of 4207866505 is about 64868.0699959541. The cubic root of 4207866505 is about 1614.4353229115.

The spelling of 4207866505 in words is "four billion, two hundred seven million, eight hundred sixty-six thousand, five hundred five".