22780387064 has 16 divisors (see below), whose sum is σ = 42743778000. Its totient is φ = 11382046272.

The previous prime is 22780387057. The next prime is 22780387067. The reversal of 22780387064 is 46078308722.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22780387067) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1006517 + ... + 1028900.

It is an arithmetic number, because the mean of its divisors is an integer number (2671486125).

Almost surely, 2^22780387064 is an apocalyptic number.

It is an amenable number.

22780387064 is a deficient number, since it is larger than the sum of its proper divisors (19963390936).

22780387064 is a wasteful number, since it uses less digits than its factorization.

22780387064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2036822 (or 2036818 counting only the distinct ones).

The product of its (nonzero) digits is 903168, while the sum is 47.

The spelling of 22780387064 in words is "twenty-two billion, seven hundred eighty million, three hundred eighty-seven thousand, sixty-four".