91415791382 has 8 divisors (see below), whose sum is σ = 137419851936. Its totient is φ = 45609174072.

The previous prime is 91415791373. The next prime is 91415791427. The reversal of 91415791382 is 28319751419.

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

It is a self number, because there is not a number n which added to its sum of digits gives 91415791382.

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, 49359653 + ... + 49361504.

It is an arithmetic number, because the mean of its divisors is an integer number (17177481492).

Almost surely, 2^91415791382 is an apocalyptic number.

91415791382 is a deficient number, since it is larger than the sum of its proper divisors (46004060554).

91415791382 is a wasteful number, since it uses less digits than its factorization.

91415791382 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98721622.

The product of its digits is 544320, while the sum is 50.

The spelling of 91415791382 in words is "ninety-one billion, four hundred fifteen million, seven hundred ninety-one thousand, three hundred eighty-two".