9913806914508 has 288 divisors, whose sum is σ = 29886062169600. Its totient is φ = 2768954751360.

The previous prime is 9913806914507. The next prime is 9913806914579. The reversal of 9913806914508 is 8054196083199.

9913806914508 is a `hidden beast` number, since 9 + 9 + 1 + 38 + 0 + 6 + 91 + 4 + 508 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is not an unprimeable number, because it can be changed into a prime (9913806914507) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 122735791 + ... + 122816537.

It is an arithmetic number, because the mean of its divisors is an integer number (103771049200).

Almost surely, 2^{9913806914508} is an apocalyptic number.

9913806914508 is a gapful number since it is divisible by the number (98) 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 9913806914508, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14943031084800).

9913806914508 is an abundant number, since it is smaller than the sum of its proper divisors (19972255255092).

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

9913806914508 is a wasteful number, since it uses less digits than its factorization.

9913806914508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81002 (or 80983 counting only the distinct ones).

The product of its (nonzero) digits is 16796160, while the sum is 63.

The spelling of 9913806914508 in words is "nine trillion, nine hundred thirteen billion, eight hundred six million, nine hundred fourteen thousand, five hundred eight".