1891296106 has 16 divisors (see below), whose sum is σ = 3275649216. Its totient is φ = 802198656.

The previous prime is 1891296089. The next prime is 1891296109. The reversal of 1891296106 is 6016921981.

It is not an unprimeable number, because it can be changed into a prime (1891296109) 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 7 ways as a sum of consecutive naturals, for example, 694996 + ... + 697711.

It is an arithmetic number, because the mean of its divisors is an integer number (204728076).

Almost surely, 2^1891296106 is an apocalyptic number.

1891296106 is a deficient number, since it is larger than the sum of its proper divisors (1384353110).

1891296106 is a wasteful number, since it uses less digits than its factorization.

1891296106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392813.

The product of its (nonzero) digits is 46656, while the sum is 43.

The square root of 1891296106 is about 43489.0343190097. The cubic root of 1891296106 is about 1236.6681508964.

The spelling of 1891296106 in words is "one billion, eight hundred ninety-one million, two hundred ninety-six thousand, one hundred six".