32778650020 has 24 divisors (see below), whose sum is σ = 70695576504. Its totient is φ = 12757095936.

The previous prime is 32778649997. The next prime is 32778650053. The reversal of 32778650020 is 2005687723.

It can be written as a sum of positive squares in 4 ways, for example, as 972067684 + 31806582336 = 31178^2 + 178344^2 .

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, 22146997 + ... + 22148476.

It is an arithmetic number, because the mean of its divisors is an integer number (2945649021).

Almost surely, 2^32778650020 is an apocalyptic number.

It is an amenable number.

32778650020 is an abundant number, since it is smaller than the sum of its proper divisors (37916926484).

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

32778650020 is a wasteful number, since it uses less digits than its factorization.

32778650020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44295519 (or 44295517 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 32778650020 in words is "thirty-two billion, seven hundred seventy-eight million, six hundred fifty thousand, twenty".