91583015482047 has 4 divisors (see below), whose sum is σ = 122110687309400. Its totient is φ = 61055343654696.

The previous prime is 91583015482037. The next prime is 91583015482061. The reversal of 91583015482047 is 74028451038519.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 91583015482047 - 2¹⁵ = 91583015449279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91583015482037) 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, 15263835913672 + ... + 15263835913677.

It is an arithmetic number, because the mean of its divisors is an integer number (30527671827350).

Almost surely, 2^{91583015482047} is an apocalyptic number.

91583015482047 is a deficient number, since it is larger than the sum of its proper divisors (30527671827353).

91583015482047 is a wasteful number, since it uses less digits than its factorization.

91583015482047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30527671827352.

The product of its (nonzero) digits is 9676800, while the sum is 57.

The spelling of 91583015482047 in words is "ninety-one trillion, five hundred eighty-three billion, fifteen million, four hundred eighty-two thousand, forty-seven".