22148489493 has 192 divisors, whose sum is σ = 38745907200. Its totient is φ = 12081000960.

The previous prime is 22148489483. The next prime is 22148489497. The reversal of 22148489493 is 39498484122.

It is a happy number.

22148489493 is a `hidden beast` number, since 2 + 2 + 148 + 4 + 8 + 9 + 493 = 666.

It is not a de Polignac number, because 22148489493 - 2⁴ = 22148489477 is a prime.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22148489497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 266849230 + ... + 266849312.

It is an arithmetic number, because the mean of its divisors is an integer number (201801600).

Almost surely, 2^22148489493 is an apocalyptic number.

It is an amenable number.

22148489493 is a deficient number, since it is larger than the sum of its proper divisors (16597417707).

22148489493 is a wasteful number, since it uses less digits than its factorization.

22148489493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264 (or 261 counting only the distinct ones).

The product of its digits is 3981312, while the sum is 54.

The spelling of 22148489493 in words is "twenty-two billion, one hundred forty-eight million, four hundred eighty-nine thousand, four hundred ninety-three".