9921913037832 has 64 divisors (see below), whose sum is σ = 26269568686080. Its totient is φ = 3116291948352.

The previous prime is 9921913037801. The next prime is 9921913037837. The reversal of 9921913037832 is 2387303191299.

It is not an unprimeable number, because it can be changed into a prime (9921913037837) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134100928 + ... + 134174895.

It is an arithmetic number, because the mean of its divisors is an integer number (410462010720).

Almost surely, 2^{9921913037832} is an apocalyptic number.

9921913037832 is a gapful number since it is divisible by the number (92) formed by its first and last digit.

It is an amenable number.

9921913037832 is an abundant number, since it is smaller than the sum of its proper divisors (16347655648248).

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

9921913037832 is a wasteful number, since it uses less digits than its factorization.

9921913037832 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268275922 (or 268275918 counting only the distinct ones).

The product of its (nonzero) digits is 4408992, while the sum is 57.

The spelling of 9921913037832 in words is "nine trillion, nine hundred twenty-one billion, nine hundred thirteen million, thirty-seven thousand, eight hundred thirty-two".