91449837910 has 16 divisors (see below), whose sum is σ = 174292632576. Its totient is φ = 34428174208.

The previous prime is 91449837889. The next prime is 91449837929. The reversal of 91449837910 is 1973894419.

It is a congruent number.

It is an unprimeable number.

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, 268969942 + ... + 268970281.

It is an arithmetic number, because the mean of its divisors is an integer number (10893289536).

Almost surely, 2^91449837910 is an apocalyptic number.

91449837910 is a deficient number, since it is larger than the sum of its proper divisors (82842794666).

91449837910 is a wasteful number, since it uses less digits than its factorization.

91449837910 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 537940247.

The product of its (nonzero) digits is 1959552, while the sum is 55.

The spelling of 91449837910 in words is "ninety-one billion, four hundred forty-nine million, eight hundred thirty-seven thousand, nine hundred ten".