32224778287 has 32 divisors (see below), whose sum is σ = 36384320000. Its totient is φ = 28336988160.

The previous prime is 32224778263. The next prime is 32224778309. The reversal of 32224778287 is 78287742223.

It is a de Polignac number, because none of the positive numbers 2^k-32224778287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32224778227) 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, 25799839 + ... + 25801087.

It is an arithmetic number, because the mean of its divisors is an integer number (1137010000).

Almost surely, 2^32224778287 is an apocalyptic number.

32224778287 is a deficient number, since it is larger than the sum of its proper divisors (4159541713).

32224778287 is a wasteful number, since it uses less digits than its factorization.

32224778287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2243.

The product of its digits is 4214784, while the sum is 52.

The spelling of 32224778287 in words is "thirty-two billion, two hundred twenty-four million, seven hundred seventy-eight thousand, two hundred eighty-seven".