8749313129479 has 32 divisors (see below), whose sum is σ = 9848725286400. Its totient is φ = 7712017568640.

The previous prime is 8749313129467. The next prime is 8749313129497. The reversal of 8749313129479 is 9749213139478.

It is not a de Polignac number, because 8749313129479 - 2²³ = 8749304740871 is a prime.

It is a super-2 number, since 2×8749313129479² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8749313124479) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 579762724 + ... + 579777814.

It is an arithmetic number, because the mean of its divisors is an integer number (307772665200).

Almost surely, 2^{8749313129479} is an apocalyptic number.

8749313129479 is a deficient number, since it is larger than the sum of its proper divisors (1099412156921).

8749313129479 is a wasteful number, since it uses less digits than its factorization.

8749313129479 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18295.

The product of its digits is 82301184, while the sum is 67.

Subtracting 8749313129479 from its reverse (9749213139478), we obtain a palindrome (999900009999).

The spelling of 8749313129479 in words is "eight trillion, seven hundred forty-nine billion, three hundred thirteen million, one hundred twenty-nine thousand, four hundred seventy-nine".