2091869486 has 48 divisors (see below), whose sum is σ = 3862780560. Its totient is φ = 844784640.

The previous prime is 2091869473. The next prime is 2091869489. The reversal of 2091869486 is 6849681902.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091869489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 356456 + ... + 362276.

It is an arithmetic number, because the mean of its divisors is an integer number (80474595).

Almost surely, 2^2091869486 is an apocalyptic number.

2091869486 is a deficient number, since it is larger than the sum of its proper divisors (1770911074).

2091869486 is a wasteful number, since it uses less digits than its factorization.

2091869486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6049 (or 6042 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 53.

The square root of 2091869486 is about 45736.9597371754. The cubic root of 2091869486 is about 1278.9243661315.

The spelling of 2091869486 in words is "two billion, ninety-one million, eight hundred sixty-nine thousand, four hundred eighty-six".