32778063808 has 56 divisors (see below), whose sum is σ = 74792181632. Its totient is φ = 13961528064.

The previous prime is 32778063797. The next prime is 32778063809. The reversal of 32778063808 is 80836087723.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32778063809) 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, 151410 + ... + 297457.

It is an arithmetic number, because the mean of its divisors is an integer number (1335574672).

Almost surely, 2^32778063808 is an apocalyptic number.

It is an amenable number.

32778063808 is an abundant number, since it is smaller than the sum of its proper divisors (42014117824).

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

32778063808 is a wasteful number, since it uses less digits than its factorization.

32778063808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 449049 (or 449039 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 52.

The spelling of 32778063808 in words is "thirty-two billion, seven hundred seventy-eight million, sixty-three thousand, eight hundred eight".