91039291010291 has 8 divisors (see below), whose sum is σ = 98042499565920. Its totient is φ = 84036109050432.

The previous prime is 91039291010281. The next prime is 91039291010293. The reversal of 91039291010291 is 19201019293019.

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

It is a cyclic number.

It is not a de Polignac number, because 91039291010291 - 2³⁴ = 91022111141107 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91039291010293) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 766871 + ... + 13515423.

It is an arithmetic number, because the mean of its divisors is an integer number (12255312445740).

Almost surely, 2^{91039291010291} is an apocalyptic number.

91039291010291 is a deficient number, since it is larger than the sum of its proper divisors (7003208555629).

91039291010291 is a wasteful number, since it uses less digits than its factorization.

91039291010291 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13297885.

The product of its (nonzero) digits is 78732, while the sum is 47.

The spelling of 91039291010291 in words is "ninety-one trillion, thirty-nine billion, two hundred ninety-one million, ten thousand, two hundred ninety-one".