91700741570 has 16 divisors (see below), whose sum is σ = 166015449720. Its totient is φ = 36468271104.

The previous prime is 91700741567. The next prime is 91700741593. The reversal of 91700741570 is 7514700719.

It can be written as a sum of positive squares in 4 ways, for example, as 91300061281 + 400680289 = 302159^2 + 20017^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26501375 + ... + 26504834.

Almost surely, 2^91700741570 is an apocalyptic number.

91700741570 is a deficient number, since it is larger than the sum of its proper divisors (74314708150).

91700741570 is a wasteful number, since it uses less digits than its factorization.

91700741570 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53006389.

The product of its (nonzero) digits is 61740, while the sum is 41.

The spelling of 91700741570 in words is "ninety-one billion, seven hundred million, seven hundred forty-one thousand, five hundred seventy".