91022286601 has 9 divisors (see below), whose sum is σ = 96696943399. Its totient is φ = 85663207264.

The previous prime is 91022286587. The next prime is 91022286617. The reversal of 91022286601 is 10668222019.

The square root of 91022286601 is 301699.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 70865102025 + 20157184576 = 266205^2 + 141976^2 .

It is not a de Polignac number, because 91022286601 - 2¹¹ = 91022284553 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91022286401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 5120010 + ... + 5137756.

Almost surely, 2^91022286601 is an apocalyptic number.

91022286601 is the 301699-th square number.

91022286601 is the 150850-th centered octagonal number.

It is an amenable number.

91022286601 is a deficient number, since it is larger than the sum of its proper divisors (5674656798).

91022286601 is an frugal number, since it uses more digits than its factorization.

91022286601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35528 (or 17764 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 37.

The spelling of 91022286601 in words is "ninety-one billion, twenty-two million, two hundred eighty-six thousand, six hundred one".