91475368484155 has 16 divisors (see below), whose sum is σ = 110561173632000. Its totient is φ = 72653150164320.

The previous prime is 91475368484153. The next prime is 91475368484219. The reversal of 91475368484155 is 55148486357419.

It is not a de Polignac number, because 91475368484155 - 2¹ = 91475368484153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91475368484153) 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, 83480470 + ... + 84569140.

It is an arithmetic number, because the mean of its divisors is an integer number (6910073352000).

Almost surely, 2^{91475368484155} is an apocalyptic number.

91475368484155 is a deficient number, since it is larger than the sum of its proper divisors (19085805147845).

91475368484155 is a wasteful number, since it uses less digits than its factorization.

91475368484155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1209714.

The product of its digits is 580608000, while the sum is 70.

The spelling of 91475368484155 in words is "ninety-one trillion, four hundred seventy-five billion, three hundred sixty-eight million, four hundred eighty-four thousand, one hundred fifty-five".