7947298491 has 16 divisors (see below), whose sum is σ = 12062304000. Its totient is φ = 4607129120.

The previous prime is 7947298459. The next prime is 7947298501. The reversal of 7947298491 is 1948927497.

7947298491 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 7947298491 - 2⁵ = 7947298459 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7947298421) 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 15 ways as a sum of consecutive naturals, for example, 5234616 + ... + 5236133.

It is an arithmetic number, because the mean of its divisors is an integer number (753894000).

Almost surely, 2^7947298491 is an apocalyptic number.

7947298491 is a deficient number, since it is larger than the sum of its proper divisors (4115005509).

7947298491 is a wasteful number, since it uses less digits than its factorization.

7947298491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10470786.

The product of its digits is 9144576, while the sum is 60.

The square root of 7947298491 is about 89147.6219032230. The cubic root of 7947298491 is about 1995.5985282122.

The spelling of 7947298491 in words is "seven billion, nine hundred forty-seven million, two hundred ninety-eight thousand, four hundred ninety-one".