2748493191 has 4 divisors (see below), whose sum is σ = 3664657592. Its totient is φ = 1832328792.

The previous prime is 2748493177. The next prime is 2748493193. The reversal of 2748493191 is 1913948472.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2748493191 - 2¹⁴ = 2748476807 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2748493191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2748493193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 458082196 + ... + 458082201.

It is an arithmetic number, because the mean of its divisors is an integer number (916164398).

Almost surely, 2^2748493191 is an apocalyptic number.

2748493191 is a deficient number, since it is larger than the sum of its proper divisors (916164401).

2748493191 is an equidigital number, since it uses as much as digits as its factorization.

2748493191 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 916164400.

The product of its digits is 435456, while the sum is 48.

The square root of 2748493191 is about 52426.0735798515. The cubic root of 2748493191 is about 1400.7637314209.

The spelling of 2748493191 in words is "two billion, seven hundred forty-eight million, four hundred ninety-three thousand, one hundred ninety-one".