32220434787 has 16 divisors (see below), whose sum is σ = 45442526208. Its totient is φ = 20264904000.

The previous prime is 32220434767. The next prime is 32220434801. The reversal of 32220434787 is 78743402223.

It is not a de Polignac number, because 32220434787 - 2¹⁸ = 32220172643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (32220434767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3193339 + ... + 3203412.

It is an arithmetic number, because the mean of its divisors is an integer number (2840157888).

Almost surely, 2^32220434787 is an apocalyptic number.

32220434787 is a deficient number, since it is larger than the sum of its proper divisors (13222091421).

32220434787 is a wasteful number, since it uses less digits than its factorization.

32220434787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6396850.

The product of its (nonzero) digits is 451584, while the sum is 42.

The spelling of 32220434787 in words is "thirty-two billion, two hundred twenty million, four hundred thirty-four thousand, seven hundred eighty-seven".