9872752636 has 12 divisors (see below), whose sum is σ = 17294900112. Its totient is φ = 4931352608.

The previous prime is 9872752619. The next prime is 9872752693. The reversal of 9872752636 is 6362572789.

It is a super-2 number, since 2×9872752636² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1251505 + ... + 1259368.

It is an arithmetic number, because the mean of its divisors is an integer number (1441241676).

Almost surely, 2^9872752636 is an apocalyptic number.

It is an amenable number.

9872752636 is a deficient number, since it is larger than the sum of its proper divisors (7422147476).

9872752636 is a wasteful number, since it uses less digits than its factorization.

9872752636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2511860 (or 2511858 counting only the distinct ones).

The product of its digits is 7620480, while the sum is 55.

The square root of 9872752636 is about 99361.7262128633. The cubic root of 9872752636 is about 2145.2574487549.

The spelling of 9872752636 in words is "nine billion, eight hundred seventy-two million, seven hundred fifty-two thousand, six hundred thirty-six".