91550882469 has 8 divisors (see below), whose sum is σ = 122069324160. Its totient is φ = 61033181216.

The previous prime is 91550882461. The next prime is 91550882509. The reversal of 91550882469 is 96428805519.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91550882469 - 2³ = 91550882461 is a prime.

It is a super-3 number, since 3×91550882469³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91550882461) 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 7 ways as a sum of consecutive naturals, for example, 248497 + ... + 494825.

It is an arithmetic number, because the mean of its divisors is an integer number (15258665520).

Almost surely, 2^91550882469 is an apocalyptic number.

It is an amenable number.

91550882469 is a deficient number, since it is larger than the sum of its proper divisors (30518441691).

91550882469 is a wasteful number, since it uses less digits than its factorization.

91550882469 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370219.

The product of its (nonzero) digits is 6220800, while the sum is 57.

The spelling of 91550882469 in words is "ninety-one billion, five hundred fifty million, eight hundred eighty-two thousand, four hundred sixty-nine".