2806913049 has 16 divisors (see below), whose sum is σ = 3793046400. Its totient is φ = 1846164096.

The previous prime is 2806913033. The next prime is 2806913051. The reversal of 2806913049 is 9403196082.

It is not a de Polignac number, because 2806913049 - 2⁴ = 2806913033 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2806913049.

It is not an unprimeable number, because it can be changed into a prime (2806913009) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 66237 + ... + 100005.

It is an arithmetic number, because the mean of its divisors is an integer number (237065400).

Almost surely, 2^2806913049 is an apocalyptic number.

It is an amenable number.

2806913049 is a deficient number, since it is larger than the sum of its proper divisors (986133351).

2806913049 is a wasteful number, since it uses less digits than its factorization.

2806913049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34144.

The product of its (nonzero) digits is 93312, while the sum is 42.

The square root of 2806913049 is about 52980.3081248118. The cubic root of 2806913049 is about 1410.6187531286.

The spelling of 2806913049 in words is "two billion, eight hundred six million, nine hundred thirteen thousand, forty-nine".