91248682916520 has 128 divisors (see below), whose sum is σ = 304229185718400. Its totient is φ = 24327629365248.

The previous prime is 91248682916513. The next prime is 91248682916533. The reversal of 91248682916520 is 2561928684219.

91248682916520 is a `hidden beast` number, since 9 + 1 + 2 + 4 + 86 + 8 + 29 + 1 + 6 + 520 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4379929 + ... + 14201448.

It is an arithmetic number, because the mean of its divisors is an integer number (2376790513425).

Almost surely, 2^{91248682916520} is an apocalyptic number.

91248682916520 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

91248682916520 is an abundant number, since it is smaller than the sum of its proper divisors (212980502801880).

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

91248682916520 is a wasteful number, since it uses less digits than its factorization.

91248682916520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18585944 (or 18585934 counting only the distinct ones).

The product of its (nonzero) digits is 29859840, while the sum is 63.

The spelling of 91248682916520 in words is "ninety-one trillion, two hundred forty-eight billion, six hundred eighty-two million, nine hundred sixteen thousand, five hundred twenty".