91934484849 has 27 divisors (see below), whose sum is σ = 133705729209. Its totient is φ = 60871837320.

The previous prime is 91934484823. The next prime is 91934484857. The reversal of 91934484849 is 94848443919.

The square root of 91934484849 is 303207.

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

It is not a de Polignac number, because 91934484849 - 2²⁵ = 91900930417 is a prime.

It is not an unprimeable number, because it can be changed into a prime (91934484809) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 191929792 + ... + 191930270.

Almost surely, 2^91934484849 is an apocalyptic number.

91934484849 is the 303207-th square number.

91934484849 is the 151604-th centered octagonal number.

It is an amenable number.

91934484849 is a deficient number, since it is larger than the sum of its proper divisors (41771244360).

91934484849 is an frugal number, since it uses more digits than its factorization.

91934484849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386 (or 693 counting only the distinct ones).

The product of its digits is 35831808, while the sum is 63.

The spelling of 91934484849 in words is "ninety-one billion, nine hundred thirty-four million, four hundred eighty-four thousand, eight hundred forty-nine".