2872989613 has 8 divisors (see below), whose sum is σ = 3275988408. Its totient is φ = 2495990784.

The previous prime is 2872989607. The next prime is 2872989617. The reversal of 2872989613 is 3169892782.

It can be written as a sum of positive squares in 4 ways, for example, as 671690889 + 2201298724 = 25917^2 + 46918^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2872989613 - 2²¹ = 2870892461 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 (2872989617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6499756 + ... + 6500197.

It is an arithmetic number, because the mean of its divisors is an integer number (409498551).

Almost surely, 2^2872989613 is an apocalyptic number.

It is an amenable number.

2872989613 is a deficient number, since it is larger than the sum of its proper divisors (402998795).

2872989613 is a wasteful number, since it uses less digits than its factorization.

2872989613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12999983.

The product of its digits is 2612736, while the sum is 55.

The square root of 2872989613 is about 53600.2762399598. The cubic root of 2872989613 is about 1421.6019765140.

The spelling of 2872989613 in words is "two billion, eight hundred seventy-two million, nine hundred eighty-nine thousand, six hundred thirteen".