9478369511 has 4 divisors (see below), whose sum is σ = 10207474872. Its totient is φ = 8749264152.

The previous prime is 9478369501. The next prime is 9478369553. The reversal of 9478369511 is 1159638749.

9478369511 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1159638749 = 43 ⋅26968343.

It is a cyclic number.

It is not a de Polignac number, because 9478369511 - 2⁶ = 9478369447 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 (9478369501) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364552661 + ... + 364552686.

It is an arithmetic number, because the mean of its divisors is an integer number (2551868718).

Almost surely, 2^9478369511 is an apocalyptic number.

9478369511 is a deficient number, since it is larger than the sum of its proper divisors (729105361).

9478369511 is a wasteful number, since it uses less digits than its factorization.

9478369511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729105360.

The product of its digits is 1632960, while the sum is 53.

The square root of 9478369511 is about 97356.9181465806. The cubic root of 9478369511 is about 2116.3031506871.

The spelling of 9478369511 in words is "nine billion, four hundred seventy-eight million, three hundred sixty-nine thousand, five hundred eleven".