91294249612 has 24 divisors (see below), whose sum is σ = 164164492800. Its totient is φ = 44398993296.

The previous prime is 91294249603. The next prime is 91294249663. The reversal of 91294249612 is 21694249219.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

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, 1069312 + ... + 1151527.

It is an arithmetic number, because the mean of its divisors is an integer number (6840187200).

Almost surely, 2^91294249612 is an apocalyptic number.

It is an amenable number.

91294249612 is a deficient number, since it is larger than the sum of its proper divisors (72870243188).

91294249612 is a wasteful number, since it uses less digits than its factorization.

91294249612 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2221125 (or 2221123 counting only the distinct ones).

The product of its digits is 559872, while the sum is 49.

The spelling of 91294249612 in words is "ninety-one billion, two hundred ninety-four million, two hundred forty-nine thousand, six hundred twelve".