2091895628 has 48 divisors (see below), whose sum is σ = 4017625920. Its totient is φ = 948627456.

The previous prime is 2091895571. The next prime is 2091895643. The reversal of 2091895628 is 8265981902.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1906376 + ... + 1907472.

It is an arithmetic number, because the mean of its divisors is an integer number (83700540).

Almost surely, 2^2091895628 is an apocalyptic number.

It is an amenable number.

2091895628 is a deficient number, since it is larger than the sum of its proper divisors (1925730292).

2091895628 is a wasteful number, since it uses less digits than its factorization.

2091895628 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2114 (or 2112 counting only the distinct ones).

The product of its (nonzero) digits is 622080, while the sum is 50.

The square root of 2091895628 is about 45737.2455226591. The cubic root of 2091895628 is about 1278.9296936630.

The spelling of 2091895628 in words is "two billion, ninety-one million, eight hundred ninety-five thousand, six hundred twenty-eight".