91839242294 has 8 divisors (see below), whose sum is σ = 137760154248. Its totient is φ = 45919190880.

The previous prime is 91839242291. The next prime is 91839242381. The reversal of 91839242294 is 49224293819.

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

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91839242291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275069 + ... + 509255.

It is an arithmetic number, because the mean of its divisors is an integer number (17220019281).

Almost surely, 2^91839242294 is an apocalyptic number.

91839242294 is a deficient number, since it is larger than the sum of its proper divisors (45920911954).

91839242294 is a wasteful number, since it uses less digits than its factorization.

91839242294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 430270.

The product of its digits is 2239488, while the sum is 53.

The spelling of 91839242294 in words is "ninety-one billion, eight hundred thirty-nine million, two hundred forty-two thousand, two hundred ninety-four".