2091352851 has 20 divisors (see below), whose sum is σ = 3570423472. Its totient is φ = 1195058448.

The previous prime is 2091352841. The next prime is 2091352871. The reversal of 2091352851 is 1582531902.

It is not a de Polignac number, because 2091352851 - 2⁹ = 2091352339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2091352831) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1843660 + ... + 1844793.

Almost surely, 2^2091352851 is an apocalyptic number.

2091352851 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2091352851 is a deficient number, since it is larger than the sum of its proper divisors (1479070621).

2091352851 is an equidigital number, since it uses as much as digits as its factorization.

2091352851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3688472 (or 3688463 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 2091352851 is about 45731.3114944236. The cubic root of 2091352851 is about 1278.8190709245.

The spelling of 2091352851 in words is "two billion, ninety-one million, three hundred fifty-two thousand, eight hundred fifty-one".