2868481949 has 4 divisors (see below), whose sum is σ = 2868710364. Its totient is φ = 2868253536.

The previous prime is 2868481939. The next prime is 2868481951. The reversal of 2868481949 is 9491848682.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 906612100 + 1961869849 = 30110^2 + 44293^2 .

It is a cyclic number.

It is not a de Polignac number, because 2868481949 - 2⁴ = 2868481933 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2868481939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94202 + ... + 120875.

It is an arithmetic number, because the mean of its divisors is an integer number (717177591).

Almost surely, 2^2868481949 is an apocalyptic number.

It is an amenable number.

2868481949 is a deficient number, since it is larger than the sum of its proper divisors (228415).

2868481949 is a wasteful number, since it uses less digits than its factorization.

2868481949 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228414.

The product of its digits is 7962624, while the sum is 59.

The square root of 2868481949 is about 53558.2108457704. The cubic root of 2868481949 is about 1420.8580988539.

The spelling of 2868481949 in words is "two billion, eight hundred sixty-eight million, four hundred eighty-one thousand, nine hundred forty-nine".