9942445536 has 48 divisors (see below), whose sum is σ = 26591365584. Its totient is φ = 3251615744.

The previous prime is 9942445517. The next prime is 9942445567. The reversal of 9942445536 is 6355442499.

It is a tau number, because it is divible by the number of its divisors (48).

It is a congruent number.

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, 971961 + ... + 982136.

It is an arithmetic number, because the mean of its divisors is an integer number (553986783).

Almost surely, 2^9942445536 is an apocalyptic number.

9942445536 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

9942445536 is an abundant number, since it is smaller than the sum of its proper divisors (16648920048).

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

9942445536 is a wasteful number, since it uses less digits than its factorization.

9942445536 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1954163 (or 1954155 counting only the distinct ones).

The product of its digits is 4665600, while the sum is 51.

The square root of 9942445536 is about 99711.8124195925. The cubic root of 9942445536 is about 2150.2934905638.

The spelling of 9942445536 in words is "nine billion, nine hundred forty-two million, four hundred forty-five thousand, five hundred thirty-six".