2091554653 has 8 divisors (see below), whose sum is σ = 2100264320. Its totient is φ = 2082862080.

The previous prime is 2091554651. The next prime is 2091554681. The reversal of 2091554653 is 3564551902.

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

It is a cyclic number.

It is not a de Polignac number, because 2091554653 - 2¹ = 2091554651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2091554651) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 278518 + ... + 285928.

It is an arithmetic number, because the mean of its divisors is an integer number (262533040).

Almost surely, 2^2091554653 is an apocalyptic number.

It is an amenable number.

2091554653 is a deficient number, since it is larger than the sum of its proper divisors (8709667).

2091554653 is an equidigital number, since it uses as much as digits as its factorization.

2091554653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547.

The product of its (nonzero) digits is 162000, while the sum is 40.

The square root of 2091554653 is about 45733.5178288310. The cubic root of 2091554653 is about 1278.8602021864.

The spelling of 2091554653 in words is "two billion, ninety-one million, five hundred fifty-four thousand, six hundred fifty-three".