2890138889 has 8 divisors (see below), whose sum is σ = 3168724800. Its totient is φ = 2614194000.

The previous prime is 2890138879. The next prime is 2890138921. The reversal of 2890138889 is 9888310982.

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

It is not a de Polignac number, because 2890138889 - 2⁸ = 2890138633 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2890138829) 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, 657962 + ... + 662339.

It is an arithmetic number, because the mean of its divisors is an integer number (396090600).

Almost surely, 2^2890138889 is an apocalyptic number.

It is an amenable number.

2890138889 is a deficient number, since it is larger than the sum of its proper divisors (278585911).

2890138889 is a wasteful number, since it uses less digits than its factorization.

2890138889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1320511.

The product of its (nonzero) digits is 1990656, while the sum is 56.

The square root of 2890138889 is about 53760.0119884659. The cubic root of 2890138889 is about 1424.4249472468.

The spelling of 2890138889 in words is "two billion, eight hundred ninety million, one hundred thirty-eight thousand, eight hundred eighty-nine".