9913475620 has 12 divisors (see below), whose sum is σ = 20818298844. Its totient is φ = 3965390240.

The previous prime is 9913475609. The next prime is 9913475629. The reversal of 9913475620 is 265743199.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2447478784 + 7465996836 = 49472^2 + 86406^2 .

It is not an unprimeable number, because it can be changed into a prime (9913475629) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247836871 + ... + 247836910.

It is an arithmetic number, because the mean of its divisors is an integer number (1734858237).

Almost surely, 2^9913475620 is an apocalyptic number.

It is an amenable number.

9913475620 is an abundant number, since it is smaller than the sum of its proper divisors (10904823224).

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

9913475620 is a wasteful number, since it uses less digits than its factorization.

9913475620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 495673790 (or 495673788 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 9913475620 is about 99566.4382209186. The cubic root of 9913475620 is about 2148.2029779624.

The spelling of 9913475620 in words is "nine billion, nine hundred thirteen million, four hundred seventy-five thousand, six hundred twenty".