91234643222 has 8 divisors (see below), whose sum is σ = 136880496000. Its totient is φ = 45607811224.

The previous prime is 91234643197. The next prime is 91234643261. The reversal of 91234643222 is 22234643219.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4743197 + ... + 4762392.

It is an arithmetic number, because the mean of its divisors is an integer number (17110062000).

Almost surely, 2^91234643222 is an apocalyptic number.

91234643222 is a deficient number, since it is larger than the sum of its proper divisors (45645852778).

91234643222 is a wasteful number, since it uses less digits than its factorization.

91234643222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9510390.

The product of its digits is 124416, while the sum is 38.

The spelling of 91234643222 in words is "ninety-one billion, two hundred thirty-four million, six hundred forty-three thousand, two hundred twenty-two".