2891513900 has 36 divisors (see below), whose sum is σ = 6845004600. Its totient is φ = 1051459200.

The previous prime is 2891513899. The next prime is 2891513909. The reversal of 2891513900 is 93151982.

It is not an unprimeable number, because it can be changed into a prime (2891513909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1313225 + ... + 1315424.

Almost surely, 2^2891513900 is an apocalyptic number.

2891513900 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2891513900 is an abundant number, since it is smaller than the sum of its proper divisors (3953490700).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2891513900 is a wasteful number, since it uses less digits than its factorization.

2891513900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2628674 (or 2628667 counting only the distinct ones).

The product of its (nonzero) digits is 19440, while the sum is 38.

The square root of 2891513900 is about 53772.7988856820. The cubic root of 2891513900 is about 1424.6508059939.

The spelling of 2891513900 in words is "two billion, eight hundred ninety-one million, five hundred thirteen thousand, nine hundred".