32490681997220 has 24 divisors (see below), whose sum is σ = 68573298696000. Its totient is φ = 12930964893792.

The previous prime is 32490681997217. The next prime is 32490681997231. The reversal of 32490681997220 is 2279918609423.

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, 4081739990 + ... + 4081747949.

It is an arithmetic number, because the mean of its divisors is an integer number (2857220779000).

Almost surely, 2^{32490681997220} is an apocalyptic number.

It is an amenable number.

32490681997220 is an abundant number, since it is smaller than the sum of its proper divisors (36082616698780).

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

32490681997220 is a wasteful number, since it uses less digits than its factorization.

32490681997220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8163488147 (or 8163488145 counting only the distinct ones).

The product of its (nonzero) digits is 23514624, while the sum is 62.

The spelling of 32490681997220 in words is "thirty-two trillion, four hundred ninety billion, six hundred eighty-one million, nine hundred ninety-seven thousand, two hundred twenty".