9478558749 has 32 divisors (see below), whose sum is σ = 14182092288. Its totient is φ = 5582232000.

The previous prime is 9478558723. The next prime is 9478558759.

9478558749 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 9478558749 - 2⁹ = 9478558237 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 9478558749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9478558759) 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, 138714 + ... + 195444.

It is an arithmetic number, because the mean of its divisors is an integer number (443190384).

Almost surely, 2^9478558749 is an apocalyptic number.

It is an amenable number.

9478558749 is a deficient number, since it is larger than the sum of its proper divisors (4703533539).

9478558749 is a wasteful number, since it uses less digits than its factorization.

9478558749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56889.

The product of its digits is 101606400, while the sum is 66.

The square root of 9478558749 is about 97357.8900192481. The cubic root of 9478558749 is about 2116.3172347660.

The spelling of 9478558749 in words is "nine billion, four hundred seventy-eight million, five hundred fifty-eight thousand, seven hundred forty-nine".