9913749868575 has 144 divisors (see below), whose sum is σ = 21986711974656. Its totient is φ = 4166215603200.

The previous prime is 9913749868543. The next prime is 9913749868577. The reversal of 9913749868575 is 5758689473199.

9913749868575 is a `hidden beast` number, since 9 + 9 + 1 + 37 + 4 + 9 + 8 + 6 + 8 + 575 = 666.

It is not a de Polignac number, because 9913749868575 - 2⁵ = 9913749868543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9913749868494 and 9913749868503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9913749868577) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 3154041 + ... + 5456690.

It is an arithmetic number, because the mean of its divisors is an integer number (152685499824).

Almost surely, 2^{9913749868575} is an apocalyptic number.

9913749868575 is an abundant number, since it is smaller than the sum of its proper divisors (12072962106081).

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

9913749868575 is a wasteful number, since it uses less digits than its factorization.

9913749868575 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8610814 (or 8610806 counting only the distinct ones).

The product of its digits is 4115059200, while the sum is 81.

The spelling of 9913749868575 in words is "nine trillion, nine hundred thirteen billion, seven hundred forty-nine million, eight hundred sixty-eight thousand, five hundred seventy-five".