21325422476 has 12 divisors (see below), whose sum is σ = 37322591208. Its totient is φ = 10661824992.

The previous prime is 21325422457. The next prime is 21325422479. The reversal of 21325422476 is 67422452312.

It is not an unprimeable number, because it can be changed into a prime (21325422479) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 165866 + ... + 264881.

It is an arithmetic number, because the mean of its divisors is an integer number (3110215934).

Almost surely, 2^21325422476 is an apocalyptic number.

It is an amenable number.

21325422476 is a deficient number, since it is larger than the sum of its proper divisors (15997168732).

21325422476 is a wasteful number, since it uses less digits than its factorization.

21325422476 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 443128 (or 443126 counting only the distinct ones).

The product of its digits is 161280, while the sum is 38.

Adding to 21325422476 its reverse (67422452312), we get a palindrome (88747874788).

The spelling of 21325422476 in words is "twenty-one billion, three hundred twenty-five million, four hundred twenty-two thousand, four hundred seventy-six".