9475720920 has 48 divisors (see below), whose sum is σ = 30796094160. Its totient is φ = 2526858816.

The previous prime is 9475720909. The next prime is 9475720921. The reversal of 9475720920 is 290275749.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9475720921) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13160364 + ... + 13161083.

It is an arithmetic number, because the mean of its divisors is an integer number (641585295).

Almost surely, 2^9475720920 is an apocalyptic number.

9475720920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9475720920 is an abundant number, since it is smaller than the sum of its proper divisors (21320373240).

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

9475720920 is a wasteful number, since it uses less digits than its factorization.

9475720920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26321464 (or 26321457 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 9475720920 is about 97343.3147165228. The cubic root of 9475720920 is about 2116.1060090567.

The spelling of 9475720920 in words is "nine billion, four hundred seventy-five million, seven hundred twenty thousand, nine hundred twenty".