9454891872 has 96 divisors (see below), whose sum is σ = 26968273920. Its totient is φ = 2889423360.

The previous prime is 9454891871. The next prime is 9454891889. The reversal of 9454891872 is 2781984549.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×9454891872² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9454891871) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27063 + ... + 140150.

It is an arithmetic number, because the mean of its divisors is an integer number (280919520).

Almost surely, 2^9454891872 is an apocalyptic number.

It is an amenable number.

9454891872 is an abundant number, since it is smaller than the sum of its proper divisors (17513382048).

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

9454891872 is a wasteful number, since it uses less digits than its factorization.

9454891872 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167276 (or 167268 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 57.

The square root of 9454891872 is about 97236.2682953228. The cubic root of 9454891872 is about 2114.5543660362.

The spelling of 9454891872 in words is "nine billion, four hundred fifty-four million, eight hundred ninety-one thousand, eight hundred seventy-two".