9400778472 has 64 divisors (see below), whose sum is σ = 23617440000. Its totient is φ = 3118235904.

The previous prime is 9400778459. The next prime is 9400778531. The reversal of 9400778472 is 2748770049.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5937793 + ... + 5939375.

It is an arithmetic number, because the mean of its divisors is an integer number (369022500).

Almost surely, 2^9400778472 is an apocalyptic number.

It is an amenable number.

9400778472 is an abundant number, since it is smaller than the sum of its proper divisors (14216661528).

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

9400778472 is a wasteful number, since it uses less digits than its factorization.

9400778472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2650 (or 2646 counting only the distinct ones).

The product of its (nonzero) digits is 790272, while the sum is 48.

The square root of 9400778472 is about 96957.6117280124. The cubic root of 9400778472 is about 2110.5125527960.

The spelling of 9400778472 in words is "nine billion, four hundred million, seven hundred seventy-eight thousand, four hundred seventy-two".