91393991342 has 8 divisors (see below), whose sum is σ = 137126858016. Its totient is φ = 45685038672.

The previous prime is 91393991327. The next prime is 91393991369. The reversal of 91393991342 is 24319939319.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5968943 + ... + 5984234.

It is an arithmetic number, because the mean of its divisors is an integer number (17140857252).

Almost surely, 2^91393991342 is an apocalyptic number.

91393991342 is a deficient number, since it is larger than the sum of its proper divisors (45732866674).

91393991342 is a wasteful number, since it uses less digits than its factorization.

91393991342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11957002.

The product of its digits is 1417176, while the sum is 53.

The spelling of 91393991342 in words is "ninety-one billion, three hundred ninety-three million, nine hundred ninety-one thousand, three hundred forty-two".