2091754509 has 8 divisors (see below), whose sum is σ = 3003544992. Its totient is φ = 1287233520.

The previous prime is 2091754507. The next prime is 2091754513. The reversal of 2091754509 is 9054571902.

2091754509 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2091754509 - 2¹ = 2091754507 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091754507) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26817327 + ... + 26817404.

It is an arithmetic number, because the mean of its divisors is an integer number (375443124).

Almost surely, 2^2091754509 is an apocalyptic number.

It is an amenable number.

2091754509 is a deficient number, since it is larger than the sum of its proper divisors (911790483).

2091754509 is a wasteful number, since it uses less digits than its factorization.

2091754509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53634747.

The product of its (nonzero) digits is 113400, while the sum is 42.

The square root of 2091754509 is about 45735.7027823997. The cubic root of 2091754509 is about 1278.9009342074.

The spelling of 2091754509 in words is "two billion, ninety-one million, seven hundred fifty-four thousand, five hundred nine".