9765478856 has 16 divisors (see below), whose sum is σ = 20926026240. Its totient is φ = 4185205200.

The previous prime is 9765478831. The next prime is 9765478873. The reversal of 9765478856 is 6588745679.

It is a junction number, because it is equal to n+sod(n) for n = 9765478792 and 9765478801.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87191720 + ... + 87191831.

It is an arithmetic number, because the mean of its divisors is an integer number (1307876640).

Almost surely, 2^9765478856 is an apocalyptic number.

It is an amenable number.

9765478856 is an abundant number, since it is smaller than the sum of its proper divisors (11160547384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9765478856 is a wasteful number, since it uses less digits than its factorization.

9765478856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 174383564 (or 174383560 counting only the distinct ones).

The product of its digits is 101606400, while the sum is 65.

The square root of 9765478856 is about 98820.4374408452. The cubic root of 9765478856 is about 2137.4592707764.

The spelling of 9765478856 in words is "nine billion, seven hundred sixty-five million, four hundred seventy-eight thousand, eight hundred fifty-six".