9747552557479 has 32 divisors (see below), whose sum is σ = 10779358682880. Its totient is φ = 8813769924960.

The previous prime is 9747552557471. The next prime is 9747552557569.

9747552557479 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9747552557479 - 2³ = 9747552557471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9747552557471) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 206016477 + ... + 206063785.

It is an arithmetic number, because the mean of its divisors is an integer number (336854958840).

Almost surely, 2^{9747552557479} is an apocalyptic number.

9747552557479 is a deficient number, since it is larger than the sum of its proper divisors (1031806125401).

9747552557479 is a wasteful number, since it uses less digits than its factorization.

9747552557479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48172 (or 48150 counting only the distinct ones).

The product of its digits is 3889620000, while the sum is 76.

The spelling of 9747552557479 in words is "nine trillion, seven hundred forty-seven billion, five hundred fifty-two million, five hundred fifty-seven thousand, four hundred seventy-nine".