8749564659478 has 16 divisors (see below), whose sum is σ = 13156278380640. Its totient is φ = 4364139729600.

The previous prime is 8749564659469. The next prime is 8749564659491.

8749564659478 is nontrivially palindromic in base 10.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14790978 + ... + 15371146.

It is an arithmetic number, because the mean of its divisors is an integer number (822267398790).

Almost surely, 2^{8749564659478} is an apocalyptic number.

8749564659478 is a deficient number, since it is larger than the sum of its proper divisors (4406713721162).

8749564659478 is a wasteful number, since it uses less digits than its factorization.

8749564659478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 598503.

The product of its digits is 14631321600, while the sum is 82.

The spelling of 8749564659478 in words is "eight trillion, seven hundred forty-nine billion, five hundred sixty-four million, six hundred fifty-nine thousand, four hundred seventy-eight".