9538981263 has 48 divisors (see below), whose sum is σ = 16586752000. Its totient is φ = 5274959760.

The previous prime is 9538981253. The next prime is 9538981267. The reversal of 9538981263 is 3621898359.

9538981263 is a `hidden beast` number, since 9 + 538 + 9 + 81 + 26 + 3 = 666.

9538981263 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 9538981263 - 2⁴ = 9538981247 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9538981267) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 45858 + ... + 145536.

Almost surely, 2^9538981263 is an apocalyptic number.

9538981263 is a gapful number since it is divisible by the number (93) formed by its first and last digit.

9538981263 is a deficient number, since it is larger than the sum of its proper divisors (7047770737).

9538981263 is a wasteful number, since it uses less digits than its factorization.

9538981263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99737 (or 99720 counting only the distinct ones).

The product of its digits is 2799360, while the sum is 54.

The square root of 9538981263 is about 97667.7083943306. The cubic root of 9538981263 is about 2120.8046416806.

The spelling of 9538981263 in words is "nine billion, five hundred thirty-eight million, nine hundred eighty-one thousand, two hundred sixty-three".