21774826030 has 16 divisors (see below), whose sum is σ = 40546228320. Its totient is φ = 8409587872.

The previous prime is 21774826027. The next prime is 21774826039. The reversal of 21774826030 is 3062847712.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21774826039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37542514 + ... + 37543093.

It is an arithmetic number, because the mean of its divisors is an integer number (2534139270).

Almost surely, 2^21774826030 is an apocalyptic number.

21774826030 is a deficient number, since it is larger than the sum of its proper divisors (18771402290).

21774826030 is a wasteful number, since it uses less digits than its factorization.

21774826030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75085643.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 21774826030 in words is "twenty-one billion, seven hundred seventy-four million, eight hundred twenty-six thousand, thirty".