6191891282 has 4 divisors (see below), whose sum is σ = 9287836926. Its totient is φ = 3095945640.

The previous prime is 6191891273. The next prime is 6191891287. The reversal of 6191891282 is 2821981916.

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

It can be written as a sum of positive squares in only one way, i.e., 3262808641 + 2929082641 = 57121^2 + 54121^2 .

It is a super-3 number, since 3×6191891282³ (a number of 30 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (6191891287) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1547972819 + ... + 1547972822.

Almost surely, 2^6191891282 is an apocalyptic number.

6191891282 is a deficient number, since it is larger than the sum of its proper divisors (3095945644).

6191891282 is a wasteful number, since it uses less digits than its factorization.

6191891282 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095945643.

The product of its digits is 124416, while the sum is 47.

The square root of 6191891282 is about 78688.5714827763. The cubic root of 6191891282 is about 1836.2893162466.

The spelling of 6191891282 in words is "six billion, one hundred ninety-one million, eight hundred ninety-one thousand, two hundred eighty-two".