91384469020 has 48 divisors (see below), whose sum is σ = 206692805088. Its totient is φ = 33738151680.

The previous prime is 91384468999. The next prime is 91384469083. The reversal of 91384469020 is 2096448319.

It is a super-2 number, since 2×91384469020² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 3465927 + ... + 3492193.

It is an arithmetic number, because the mean of its divisors is an integer number (4306100106).

Almost surely, 2^91384469020 is an apocalyptic number.

It is an amenable number.

91384469020 is an abundant number, since it is smaller than the sum of its proper divisors (115308336068).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91384469020 is a wasteful number, since it uses less digits than its factorization.

91384469020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39670 (or 39668 counting only the distinct ones).

The product of its (nonzero) digits is 373248, while the sum is 46.

The spelling of 91384469020 in words is "ninety-one billion, three hundred eighty-four million, four hundred sixty-nine thousand, twenty".