9771406472 has 64 divisors (see below), whose sum is σ = 19709464320. Its totient is φ = 4525314048.

The previous prime is 9771406471. The next prime is 9771406501. The reversal of 9771406472 is 2746041779.

It is a happy number.

It is a hoax number, since the sum of its digits (47) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (9771406471) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2337248 + ... + 2341424.

It is an arithmetic number, because the mean of its divisors is an integer number (307960380).

Almost surely, 2^9771406472 is an apocalyptic number.

It is an amenable number.

9771406472 is an abundant number, since it is smaller than the sum of its proper divisors (9938057848).

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

9771406472 is a wasteful number, since it uses less digits than its factorization.

9771406472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4470 (or 4466 counting only the distinct ones).

The product of its (nonzero) digits is 592704, while the sum is 47.

The square root of 9771406472 is about 98850.4247436499. The cubic root of 9771406472 is about 2137.8916603966.

The spelling of 9771406472 in words is "nine billion, seven hundred seventy-one million, four hundred six thousand, four hundred seventy-two".