9279948289491 has 24 divisors (see below), whose sum is σ = 15127188438960. Its totient is φ = 5430272769600.

The previous prime is 9279948289477. The next prime is 9279948289531. The reversal of 9279948289491 is 1949828499729.

It is a happy number.

9279948289491 is a `hidden beast` number, since 9 + 2 + 7 + 9 + 9 + 48 + 2 + 89 + 491 = 666.

It is not a de Polignac number, because 9279948289491 - 2¹¹ = 9279948287443 is a prime.

It is a super-2 number, since 2×9279948289491² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 9279948289491.

It is not an unprimeable number, because it can be changed into a prime (9279948299491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1616149740 + ... + 1616155481.

It is an arithmetic number, because the mean of its divisors is an integer number (630299518290).

Almost surely, 2^{9279948289491} is an apocalyptic number.

9279948289491 is a deficient number, since it is larger than the sum of its proper divisors (5847240149469).

9279948289491 is a wasteful number, since it uses less digits than its factorization.

9279948289491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3232305267 (or 3232305264 counting only the distinct ones).

The product of its digits is 1693052928, while the sum is 81.

The spelling of 9279948289491 in words is "nine trillion, two hundred seventy-nine billion, nine hundred forty-eight million, two hundred eighty-nine thousand, four hundred ninety-one".