9478773756 has 18 divisors (see below), whose sum is σ = 23960233752. Its totient is φ = 3159591240.

The previous prime is 9478773737. The next prime is 9478773761. The reversal of 9478773756 is 6573778749.

It is a tau number, because it is divible by the number of its divisors (18).

It is a junction number, because it is equal to n+sod(n) for n = 9478773693 and 9478773702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 131649600 + ... + 131649671.

Almost surely, 2^9478773756 is an apocalyptic number.

It is an amenable number.

9478773756 is an abundant number, since it is smaller than the sum of its proper divisors (14481459996).

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

9478773756 is a wasteful number, since it uses less digits than its factorization.

9478773756 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 263299281 (or 263299276 counting only the distinct ones).

The product of its digits is 62233920, while the sum is 63.

The square root of 9478773756 is about 97358.9942224138. The cubic root of 9478773756 is about 2116.3332364807. Note that the first 3 decimals are identical.

The spelling of 9478773756 in words is "nine billion, four hundred seventy-eight million, seven hundred seventy-three thousand, seven hundred fifty-six".