2091955786 has 8 divisors (see below), whose sum is σ = 3182130144. Its totient is φ = 1031245740.

The previous prime is 2091955753. The next prime is 2091955793. The reversal of 2091955786 is 6875591902.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7365900 + ... + 7366183.

It is an arithmetic number, because the mean of its divisors is an integer number (397766268).

Almost surely, 2^2091955786 is an apocalyptic number.

2091955786 is a deficient number, since it is larger than the sum of its proper divisors (1090174358).

2091955786 is a wasteful number, since it uses less digits than its factorization.

2091955786 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14732156.

The product of its (nonzero) digits is 1360800, while the sum is 52.

The square root of 2091955786 is about 45737.9031657552. The cubic root of 2091955786 is about 1278.9419532158.

The spelling of 2091955786 in words is "two billion, ninety-one million, nine hundred fifty-five thousand, seven hundred eighty-six".