9973532642 has 16 divisors (see below), whose sum is σ = 15762314880. Its totient is φ = 4723637952.

The previous prime is 9973532623. The next prime is 9973532659. The reversal of 9973532642 is 2462353799.

It is a super-2 number, since 2×9973532642² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1047767 + ... + 1057242.

It is an arithmetic number, because the mean of its divisors is an integer number (985144680).

Almost surely, 2^9973532642 is an apocalyptic number.

9973532642 is a deficient number, since it is larger than the sum of its proper divisors (5788782238).

9973532642 is a wasteful number, since it uses less digits than its factorization.

9973532642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2105137.

The product of its digits is 2449440, while the sum is 50.

The square root of 9973532642 is about 99867.5755287971. The cubic root of 9973532642 is about 2152.5322708354.

The spelling of 9973532642 in words is "nine billion, nine hundred seventy-three million, five hundred thirty-two thousand, six hundred forty-two".