22783477864 has 48 divisors (see below), whose sum is σ = 51036656580. Its totient is φ = 9500440320.

The previous prime is 22783477859. The next prime is 22783477879. The reversal of 22783477864 is 46877438722.

It can be written as a sum of positive squares in 2 ways, for example, as 22545022500 + 238455364 = 150150^2 + 15442^2 .

It is a junction number, because it is equal to n+sod(n) for n = 22783477799 and 22783477808.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 770917 + ... + 799924.

Almost surely, 2^22783477864 is an apocalyptic number.

It is an amenable number.

22783477864 is an abundant number, since it is smaller than the sum of its proper divisors (28253178716).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22783477864 is a wasteful number, since it uses less digits than its factorization.

22783477864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1570898 (or 1570887 counting only the distinct ones).

The product of its digits is 25288704, while the sum is 58.

The spelling of 22783477864 in words is "twenty-two billion, seven hundred eighty-three million, four hundred seventy-seven thousand, eight hundred sixty-four".