32191779680 has 48 divisors (see below), whose sum is σ = 76198694544. Its totient is φ = 12852057600.

The previous prime is 32191779617. The next prime is 32191779689. The reversal of 32191779680 is 8697719123.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32191779689) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108671 + ... + 276030.

It is an arithmetic number, because the mean of its divisors is an integer number (1587472803).

Almost surely, 2^32191779680 is an apocalyptic number.

It is an amenable number.

32191779680 is an abundant number, since it is smaller than the sum of its proper divisors (44006914864).

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

32191779680 is a wasteful number, since it uses less digits than its factorization.

32191779680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 385239 (or 385231 counting only the distinct ones).

The product of its (nonzero) digits is 1143072, while the sum is 53.

The spelling of 32191779680 in words is "thirty-two billion, one hundred ninety-one million, seven hundred seventy-nine thousand, six hundred eighty".