2091071776 has 12 divisors (see below), whose sum is σ = 4116797622. Its totient is φ = 1045535872.

The previous prime is 2091071753. The next prime is 2091071779. The reversal of 2091071776 is 6771701902.

It can be written as a sum of positive squares in only one way, i.e., 1601600400 + 489471376 = 40020^2 + 22124^2 .

It is not an unprimeable number, because it can be changed into a prime (2091071779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32672965 + ... + 32673028.

Almost surely, 2^2091071776 is an apocalyptic number.

It is an amenable number.

2091071776 is a deficient number, since it is larger than the sum of its proper divisors (2025725846).

2091071776 is an equidigital number, since it uses as much as digits as its factorization.

2091071776 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65346003 (or 65345995 counting only the distinct ones).

The product of its (nonzero) digits is 37044, while the sum is 40.

The square root of 2091071776 is about 45728.2382778956. The cubic root of 2091071776 is about 1278.7617778387.

The spelling of 2091071776 in words is "two billion, ninety-one million, seventy-one thousand, seven hundred seventy-six".