91130047287 has 16 divisors (see below), whose sum is σ = 130216381440. Its totient is φ = 56541320352.

The previous prime is 91130047273. The next prime is 91130047313. The reversal of 91130047287 is 78274003119.

It is not a de Polignac number, because 91130047287 - 2⁴ = 91130047271 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91130047247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17845087 + ... + 17850192.

It is an arithmetic number, because the mean of its divisors is an integer number (8138523840).

Almost surely, 2^91130047287 is an apocalyptic number.

91130047287 is a deficient number, since it is larger than the sum of its proper divisors (39086334153).

91130047287 is a wasteful number, since it uses less digits than its factorization.

91130047287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35695342.

The product of its (nonzero) digits is 84672, while the sum is 42.

The spelling of 91130047287 in words is "ninety-one billion, one hundred thirty million, forty-seven thousand, two hundred eighty-seven".