22148263784 has 8 divisors (see below), whose sum is σ = 41527994610. Its totient is φ = 11074131888.

The previous prime is 22148263741. The next prime is 22148263789. The reversal of 22148263784 is 48736284122.

It can be written as a sum of positive squares in only one way, i.e., 14016192100 + 8132071684 = 118390^2 + 90178^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (22148263789) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1384266479 + ... + 1384266494.

Almost surely, 2^22148263784 is an apocalyptic number.

It is an amenable number.

22148263784 is a deficient number, since it is larger than the sum of its proper divisors (19379730826).

22148263784 is a wasteful number, since it uses less digits than its factorization.

22148263784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2768532979 (or 2768532975 counting only the distinct ones).

The product of its digits is 1032192, while the sum is 47.

The spelling of 22148263784 in words is "twenty-two billion, one hundred forty-eight million, two hundred sixty-three thousand, seven hundred eighty-four".