32784640068513 has 32 divisors (see below), whose sum is σ = 46239260300800. Its totient is φ = 20604542313600.

The previous prime is 32784640068503. The next prime is 32784640068547. The reversal of 32784640068513 is 31586004648723.

It is a happy number.

It is not a de Polignac number, because 32784640068513 - 2⁶ = 32784640068449 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (32784640068503) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 73394598 + ... + 73839936.

It is an arithmetic number, because the mean of its divisors is an integer number (1444976884400).

Almost surely, 2^{32784640068513} is an apocalyptic number.

It is an amenable number.

32784640068513 is a deficient number, since it is larger than the sum of its proper divisors (13454620232287).

32784640068513 is a wasteful number, since it uses less digits than its factorization.

32784640068513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451693.

The product of its (nonzero) digits is 23224320, while the sum is 57.

The spelling of 32784640068513 in words is "thirty-two trillion, seven hundred eighty-four billion, six hundred forty million, sixty-eight thousand, five hundred thirteen".