9428636931 has 32 divisors (see below), whose sum is σ = 15164413440. Its totient is φ = 5090459904.

The previous prime is 9428636911. The next prime is 9428636939. The reversal of 9428636931 is 1396368249.

9428636931 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9428636931 - 2¹⁴ = 9428620547 is a prime.

It is a super-2 number, since 2×9428636931² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9428636939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 117151 + ... + 180503.

It is an arithmetic number, because the mean of its divisors is an integer number (473887920).

Almost surely, 2^9428636931 is an apocalyptic number.

9428636931 is a deficient number, since it is larger than the sum of its proper divisors (5735776509).

9428636931 is a wasteful number, since it uses less digits than its factorization.

9428636931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63755.

The product of its digits is 1679616, while the sum is 51.

The square root of 9428636931 is about 97101.1685357082. The cubic root of 9428636931 is about 2112.5952754947.

The spelling of 9428636931 in words is "nine billion, four hundred twenty-eight million, six hundred thirty-six thousand, nine hundred thirty-one".