9991254114 has 48 divisors (see below), whose sum is σ = 21997029600. Its totient is φ = 3277104768.

The previous prime is 9991254113. The next prime is 9991254157. The reversal of 9991254114 is 4114521999.

9991254114 is a `hidden beast` number, since 9 + 9 + 91 + 2 + 541 + 14 = 666.

9991254114 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 9991254114.

It is not an unprimeable number, because it can be changed into a prime (9991254113) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 265057 + ... + 300395.

It is an arithmetic number, because the mean of its divisors is an integer number (458271450).

Almost surely, 2^9991254114 is an apocalyptic number.

9991254114 is an abundant number, since it is smaller than the sum of its proper divisors (12005775486).

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

9991254114 is a wasteful number, since it uses less digits than its factorization.

9991254114 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35599 (or 35596 counting only the distinct ones).

The product of its digits is 116640, while the sum is 45.

The square root of 9991254114 is about 99956.2610045014. The cubic root of 9991254114 is about 2153.8064254988.

The spelling of 9991254114 in words is "nine billion, nine hundred ninety-one million, two hundred fifty-four thousand, one hundred fourteen".