2913887890 has 16 divisors (see below), whose sum is σ = 5553527832. Its totient is φ = 1096993024.

The previous prime is 2913887887. The next prime is 2913887891. The reversal of 2913887890 is 987883192.

It can be written as a sum of positive squares in 4 ways, for example, as 1681246009 + 1232641881 = 41003^2 + 35109^2 .

It is not an unprimeable number, because it can be changed into a prime (2913887891) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8570089 + ... + 8570428.

Almost surely, 2^2913887890 is an apocalyptic number.

2913887890 is a deficient number, since it is larger than the sum of its proper divisors (2639639942).

2913887890 is a wasteful number, since it uses less digits than its factorization.

2913887890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17140541.

The product of its (nonzero) digits is 1741824, while the sum is 55.

The square root of 2913887890 is about 53980.4398833503. The cubic root of 2913887890 is about 1428.3159287209.

The spelling of 2913887890 in words is "two billion, nine hundred thirteen million, eight hundred eighty-seven thousand, eight hundred ninety".