9854536520 has 32 divisors (see below), whose sum is σ = 22401300600. Its totient is φ = 3901175808.

The previous prime is 9854536501. The next prime is 9854536541. The reversal of 9854536520 is 256354589.

It can be written as a sum of positive squares in 4 ways, for example, as 9291803236 + 562733284 = 96394^2 + 23722^2 .

It is a super-2 number, since 2×9854536520² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1266035 + ... + 1273794.

Almost surely, 2^9854536520 is an apocalyptic number.

It is an amenable number.

9854536520 is an abundant number, since it is smaller than the sum of its proper divisors (12546764080).

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

9854536520 is a wasteful number, since it uses less digits than its factorization.

9854536520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2539937 (or 2539933 counting only the distinct ones).

The product of its (nonzero) digits is 1296000, while the sum is 47.

The square root of 9854536520 is about 99270.0182331000. The cubic root of 9854536520 is about 2143.9372388484.

The spelling of 9854536520 in words is "nine billion, eight hundred fifty-four million, five hundred thirty-six thousand, five hundred twenty".