91470698285 has 16 divisors (see below), whose sum is σ = 109945790640. Its totient is φ = 73056023040.

The previous prime is 91470698269. The next prime is 91470698299. The reversal of 91470698285 is 58289607419.

It can be written as a sum of positive squares in 8 ways, for example, as 11845710244 + 79624988041 = 108838^2 + 282179^2 .

It is not a de Polignac number, because 91470698285 - 2⁴ = 91470698269 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9663455 + ... + 9672915.

It is an arithmetic number, because the mean of its divisors is an integer number (6871611915).

Almost surely, 2^91470698285 is an apocalyptic number.

It is an amenable number.

91470698285 is a deficient number, since it is larger than the sum of its proper divisors (18475092355).

91470698285 is a wasteful number, since it uses less digits than its factorization.

91470698285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12448.

The product of its (nonzero) digits is 8709120, while the sum is 59.

The spelling of 91470698285 in words is "ninety-one billion, four hundred seventy million, six hundred ninety-eight thousand, two hundred eighty-five".