91457482320 has 280 divisors, whose sum is σ = 321272642592. Its totient is φ = 24200467200.

The previous prime is 91457482307. The next prime is 91457482393. The reversal of 91457482320 is 2328475419.

91457482320 is a `hidden beast` number, since 9 + 145 + 7 + 482 + 3 + 20 = 666.

It is a super-2 number, since 2×91457482320² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

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 55 ways as a sum of consecutive naturals, for example, 7633935 + ... + 7645905.

Almost surely, 2^91457482320 is an apocalyptic number.

91457482320 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91457482320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (160636321296).

91457482320 is an abundant number, since it is smaller than the sum of its proper divisors (229815160272).

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

91457482320 is a wasteful number, since it uses less digits than its factorization.

91457482320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12133 (or 12112 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 45.

The spelling of 91457482320 in words is "ninety-one billion, four hundred fifty-seven million, four hundred eighty-two thousand, three hundred twenty".