3865277505 has 64 divisors (see below), whose sum is σ = 6695571456. Its totient is φ = 1896960000.

The previous prime is 3865277497. The next prime is 3865277527. The reversal of 3865277505 is 5057725683.

3865277505 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3865277505 - 2³ = 3865277497 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2970355 + ... + 2971655.

It is an arithmetic number, because the mean of its divisors is an integer number (104618304).

Almost surely, 2^3865277505 is an apocalyptic number.

It is an amenable number.

3865277505 is a deficient number, since it is larger than the sum of its proper divisors (2830293951).

3865277505 is a wasteful number, since it uses less digits than its factorization.

3865277505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1578.

The product of its (nonzero) digits is 1764000, while the sum is 48.

The square root of 3865277505 is about 62171.3559848907. The cubic root of 3865277505 is about 1569.3755891201.

The spelling of 3865277505 in words is "three billion, eight hundred sixty-five million, two hundred seventy-seven thousand, five hundred five".