9861504052 has 12 divisors (see below), whose sum is σ = 17258391136. Its totient is φ = 4930535160.

The previous prime is 9861504047. The next prime is 9861504053. The reversal of 9861504052 is 2504051689.

It is a super-2 number, since 2×9861504052² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 9861503996 and 9861504014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9861504053) 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, 91777 + ... + 167767.

Almost surely, 2^9861504052 is an apocalyptic number.

It is an amenable number.

9861504052 is a deficient number, since it is larger than the sum of its proper divisors (7396887084).

9861504052 is a wasteful number, since it uses less digits than its factorization.

9861504052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108438 (or 108436 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 40.

The square root of 9861504052 is about 99305.1058707456. The cubic root of 9861504052 is about 2144.4424015249.

The spelling of 9861504052 in words is "nine billion, eight hundred sixty-one million, five hundred four thousand, fifty-two".