8749669478 has 48 divisors (see below), whose sum is σ = 14695916928. Its totient is φ = 3903292800.

The previous prime is 8749669417. The next prime is 8749669501.

8749669478 is nontrivially palindromic in base 10.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3938408 + ... + 3940628.

It is an arithmetic number, because the mean of its divisors is an integer number (306164936).

Almost surely, 2^8749669478 is an apocalyptic number.

8749669478 is a deficient number, since it is larger than the sum of its proper divisors (5946247450).

8749669478 is a wasteful number, since it uses less digits than its factorization.

8749669478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2541 (or 2530 counting only the distinct ones).

The product of its digits is 146313216, while the sum is 68.

The square root of 8749669478 is about 93539.6679382603. The cubic root of 8749669478 is about 2060.6167033783.

The spelling of 8749669478 in words is "eight billion, seven hundred forty-nine million, six hundred sixty-nine thousand, four hundred seventy-eight".