21327042598 has 16 divisors (see below), whose sum is σ = 33414994080. Its totient is φ = 10195851456.

The previous prime is 21327042571. The next prime is 21327042661. The reversal of 21327042598 is 89524072312.

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, 1779015 + ... + 1790962.

It is an arithmetic number, because the mean of its divisors is an integer number (2088437130).

Almost surely, 2^21327042598 is an apocalyptic number.

21327042598 is a deficient number, since it is larger than the sum of its proper divisors (12087951482).

21327042598 is a wasteful number, since it uses less digits than its factorization.

21327042598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3570111.

The product of its (nonzero) digits is 241920, while the sum is 43.

The spelling of 21327042598 in words is "twenty-one billion, three hundred twenty-seven million, forty-two thousand, five hundred ninety-eight".