91213355343206 has 8 divisors (see below), whose sum is σ = 136820221999104. Its totient is φ = 45606614676840.

The previous prime is 91213355343199. The next prime is 91213355343241. The reversal of 91213355343206 is 60234355331219.

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, 29666150 + ... + 32596121.

It is an arithmetic number, because the mean of its divisors is an integer number (17102527749888).

Almost surely, 2^{91213355343206} is an apocalyptic number.

91213355343206 is a deficient number, since it is larger than the sum of its proper divisors (45606866655898).

91213355343206 is a wasteful number, since it uses less digits than its factorization.

91213355343206 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62994766.

The product of its (nonzero) digits is 1749600, while the sum is 47.

The spelling of 91213355343206 in words is "ninety-one trillion, two hundred thirteen billion, three hundred fifty-five million, three hundred forty-three thousand, two hundred six".