21325423092 has 24 divisors (see below), whose sum is σ = 49842408000. Its totient is φ = 7096604736.

The previous prime is 21325423043. The next prime is 21325423123. The reversal of 21325423092 is 29032452312.

It is a congruent number.

It is an unprimeable number.

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, 1476217 + ... + 1490592.

It is an arithmetic number, because the mean of its divisors is an integer number (2076767000).

Almost surely, 2^21325423092 is an apocalyptic number.

It is an amenable number.

21325423092 is an abundant number, since it is smaller than the sum of its proper divisors (28516984908).

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

21325423092 is a wasteful number, since it uses less digits than its factorization.

21325423092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2967415 (or 2967413 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 33.

The spelling of 21325423092 in words is "twenty-one billion, three hundred twenty-five million, four hundred twenty-three thousand, ninety-two".