2865366091 has 8 divisors (see below), whose sum is σ = 3341535200. Its totient is φ = 2456027784.

The previous prime is 2865366073. The next prime is 2865366107. The reversal of 2865366091 is 1906635682.

It is not a de Polignac number, because 2865366091 - 2²⁵ = 2831811659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2865366191) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4176576 + ... + 4177261.

It is an arithmetic number, because the mean of its divisors is an integer number (417691900).

Almost surely, 2^2865366091 is an apocalyptic number.

2865366091 is a deficient number, since it is larger than the sum of its proper divisors (476169109).

2865366091 is an frugal number, since it uses more digits than its factorization.

2865366091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8353858 (or 8353844 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 2865366091 is about 53529.1144238348. The cubic root of 2865366091 is about 1420.3434484665.

The spelling of 2865366091 in words is "two billion, eight hundred sixty-five million, three hundred sixty-six thousand, ninety-one".