32147043920 has 80 divisors (see below), whose sum is σ = 79965655680. Its totient is φ = 11982297600.

The previous prime is 32147043919. The next prime is 32147043959. The reversal of 32147043920 is 2934074123.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 80636 + ... + 266075.

It is an arithmetic number, because the mean of its divisors is an integer number (999570696).

Almost surely, 2^32147043920 is an apocalyptic number.

It is an amenable number.

32147043920 is an abundant number, since it is smaller than the sum of its proper divisors (47818611760).

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

32147043920 is a wasteful number, since it uses less digits than its factorization.

32147043920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 346804 (or 346798 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 35.

The spelling of 32147043920 in words is "thirty-two billion, one hundred forty-seven million, forty-three thousand, nine hundred twenty".