9778248652 has 48 divisors (see below), whose sum is σ = 18256492800. Its totient is φ = 4574937920.

The previous prime is 9778248619. The next prime is 9778248679. The reversal of 9778248652 is 2568428779.

It is a happy number.

9778248652 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×9778248652² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 475863 + ... + 495985.

It is an arithmetic number, because the mean of its divisors is an integer number (380343600).

Almost surely, 2^9778248652 is an apocalyptic number.

It is an amenable number.

9778248652 is a deficient number, since it is larger than the sum of its proper divisors (8478244148).

9778248652 is a wasteful number, since it uses less digits than its factorization.

9778248652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20286 (or 20284 counting only the distinct ones).

The product of its digits is 13547520, while the sum is 58.

The square root of 9778248652 is about 98885.0274409630. The cubic root of 9778248652 is about 2138.3905454742.

The spelling of 9778248652 in words is "nine billion, seven hundred seventy-eight million, two hundred forty-eight thousand, six hundred fifty-two".