21327233554 has 8 divisors (see below), whose sum is σ = 34899109488. Its totient is φ = 9694197060.

The previous prime is 21327233527. The next prime is 21327233581. The reversal of 21327233554 is 45533272312.

It is an interprime number because it is at equal distance from previous prime (21327233527) and next prime (21327233581).

It is a sphenic number, since it is the product of 3 distinct primes.

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 3 ways as a sum of consecutive naturals, for example, 484709832 + ... + 484709875.

It is an arithmetic number, because the mean of its divisors is an integer number (4362388686).

Almost surely, 2^21327233554 is an apocalyptic number.

21327233554 is a deficient number, since it is larger than the sum of its proper divisors (13571875934).

21327233554 is a wasteful number, since it uses less digits than its factorization.

21327233554 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 969419720.

The product of its digits is 151200, while the sum is 37.

The spelling of 21327233554 in words is "twenty-one billion, three hundred twenty-seven million, two hundred thirty-three thousand, five hundred fifty-four".