9958985454 has 16 divisors (see below), whose sum is σ = 21728695680. Its totient is φ = 3017874360.

The previous prime is 9958985423. The next prime is 9958985467. The reversal of 9958985454 is 4545898599.

It is a happy number.

9958985454 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9958985454² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (66), and also a Moran number because the ratio is a prime number: 150893719 = 9958985454 / (9 + 9 + 5 + 8 + 9 + 8 + 5 + 4 + 5 + 4).

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 75446794 + ... + 75446925.

It is an arithmetic number, because the mean of its divisors is an integer number (1358043480).

Almost surely, 2^9958985454 is an apocalyptic number.

9958985454 is an abundant number, since it is smaller than the sum of its proper divisors (11769710226).

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

9958985454 is a wasteful number, since it uses less digits than its factorization.

9958985454 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 150893735.

The product of its digits is 93312000, while the sum is 66.

The square root of 9958985454 is about 99794.7165635536. The cubic root of 9958985454 is about 2151.4852152802.

The spelling of 9958985454 in words is "nine billion, nine hundred fifty-eight million, nine hundred eighty-five thousand, four hundred fifty-four".