9427746816 has 252 divisors, whose sum is σ = 29007792632. Its totient is φ = 3057647616.

The previous prime is 9427746803. The next prime is 9427746833. The reversal of 9427746816 is 6186477249.

It is a Harshad number since it is a multiple of its sum of digits (54).

Its product of digits (4064256) is a multiple of the sum of its prime divisors (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 254803950 + ... + 254803986.

Almost surely, 2^9427746816 is an apocalyptic number.

9427746816 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9427746816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14503896316).

9427746816 is an abundant number, since it is smaller than the sum of its proper divisors (19580045816).

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

9427746816 is an frugal number, since it uses more digits than its factorization.

9427746816 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92 (or 42 counting only the distinct ones).

The product of its digits is 4064256, while the sum is 54.

The square root of 9427746816 is about 97096.5849862908. The cubic root of 9427746816 is about 2112.5287932119.

The spelling of 9427746816 in words is "nine billion, four hundred twenty-seven million, seven hundred forty-six thousand, eight hundred sixteen".