32778061285 has 16 divisors (see below), whose sum is σ = 40815308160. Its totient is φ = 25251871680.

The previous prime is 32778061279. The next prime is 32778061321. The reversal of 32778061285 is 58216087723.

It is not a de Polignac number, because 32778061285 - 2¹³ = 32778053093 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1058370 + ... + 1088899.

It is an arithmetic number, because the mean of its divisors is an integer number (2550956760).

Almost surely, 2^32778061285 is an apocalyptic number.

It is an amenable number.

32778061285 is a deficient number, since it is larger than the sum of its proper divisors (8037246875).

32778061285 is a wasteful number, since it uses less digits than its factorization.

32778061285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2147388.

The product of its (nonzero) digits is 1128960, while the sum is 49.

The spelling of 32778061285 in words is "thirty-two billion, seven hundred seventy-eight million, sixty-one thousand, two hundred eighty-five".