32780605128255 has 36 divisors (see below), whose sum is σ = 58711735297800. Its totient is φ = 16919021979360.

The previous prime is 32780605128253. The next prime is 32780605128259. The reversal of 32780605128255 is 55282150608723.

It is a happy number.

32780605128255 is a `hidden beast` number, since 3 + 2 + 7 + 8 + 0 + 605 + 1 + 2 + 8 + 25 + 5 = 666.

It is not a de Polignac number, because 32780605128255 - 2¹ = 32780605128253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32780605128251) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 378967105 + ... + 379053594.

It is an arithmetic number, because the mean of its divisors is an integer number (1630881536050).

Almost surely, 2^{32780605128255} is an apocalyptic number.

32780605128255 is a deficient number, since it is larger than the sum of its proper divisors (25931130169545).

32780605128255 is a wasteful number, since it uses less digits than its factorization.

32780605128255 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 758020772 (or 758020738 counting only the distinct ones).

The product of its (nonzero) digits is 8064000, while the sum is 54.

The spelling of 32780605128255 in words is "thirty-two trillion, seven hundred eighty billion, six hundred five million, one hundred twenty-eight thousand, two hundred fifty-five".