91034438395 has 8 divisors (see below), whose sum is σ = 109242959760. Its totient is φ = 72826461600.

The previous prime is 91034438333. The next prime is 91034438431. The reversal of 91034438395 is 59383443019.

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

It is not a de Polignac number, because 91034438395 - 2¹⁷ = 91034307323 is a prime.

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 in 7 ways as a sum of consecutive naturals, for example, 513141 + ... + 667369.

It is an arithmetic number, because the mean of its divisors is an integer number (13655369970).

Almost surely, 2^91034438395 is an apocalyptic number.

91034438395 is a deficient number, since it is larger than the sum of its proper divisors (18208521365).

91034438395 is a wasteful number, since it uses less digits than its factorization.

91034438395 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272285.

The product of its (nonzero) digits is 1399680, while the sum is 49.

The spelling of 91034438395 in words is "ninety-one billion, thirty-four million, four hundred thirty-eight thousand, three hundred ninety-five".