91998226846 has 4 divisors (see below), whose sum is σ = 137997340272. Its totient is φ = 45999113422.

The previous prime is 91998226829. The next prime is 91998226877. The reversal of 91998226846 is 64862289919.

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

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 as a sum of consecutive naturals, namely, 22999556710 + ... + 22999556713.

It is an arithmetic number, because the mean of its divisors is an integer number (34499335068).

Almost surely, 2^91998226846 is an apocalyptic number.

91998226846 is a deficient number, since it is larger than the sum of its proper divisors (45999113426).

91998226846 is a wasteful number, since it uses less digits than its factorization.

91998226846 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45999113425.

The product of its digits is 26873856, while the sum is 64.

The spelling of 91998226846 in words is "ninety-one billion, nine hundred ninety-eight million, two hundred twenty-six thousand, eight hundred forty-six".