9472780820 has 24 divisors (see below), whose sum is σ = 19895820000. Its totient is φ = 3788544672.

The previous prime is 9472780819. The next prime is 9472780831. The reversal of 9472780820 is 280872749.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117431 + ... + 180929.

It is an arithmetic number, because the mean of its divisors is an integer number (828992500).

Almost surely, 2^9472780820 is an apocalyptic number.

It is an amenable number.

9472780820 is an abundant number, since it is smaller than the sum of its proper divisors (10423039180).

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

9472780820 is a wasteful number, since it uses less digits than its factorization.

9472780820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70967 (or 70965 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 47.

The square root of 9472780820 is about 97328.2118401443. The cubic root of 9472780820 is about 2115.8871266128.

The spelling of 9472780820 in words is "nine billion, four hundred seventy-two million, seven hundred eighty thousand, eight hundred twenty".