2868491091 has 8 divisors (see below), whose sum is σ = 3836005264. Its totient is φ = 1906652160.

The previous prime is 2868491063. The next prime is 2868491099. The reversal of 2868491091 is 1901948682.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2868491091 - 2⁹ = 2868490579 is a prime.

It is a super-2 number, since 2×2868491091² = 16456482278292740562, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2868491091.

It is not an unprimeable number, because it can be changed into a prime (2868491099) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 1417630 + ... + 1419651.

It is an arithmetic number, because the mean of its divisors is an integer number (479500658).

Almost surely, 2^2868491091 is an apocalyptic number.

2868491091 is a deficient number, since it is larger than the sum of its proper divisors (967514173).

2868491091 is a wasteful number, since it uses less digits than its factorization.

2868491091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2837621.

The product of its (nonzero) digits is 248832, while the sum is 48.

The square root of 2868491091 is about 53558.2961920933. The cubic root of 2868491091 is about 1420.8596083016.

The spelling of 2868491091 in words is "two billion, eight hundred sixty-eight million, four hundred ninety-one thousand, ninety-one".