20327189654 has 4 divisors (see below), whose sum is σ = 30490784484. Its totient is φ = 10163594826.

The previous prime is 20327189609. The next prime is 20327189677. The reversal of 20327189654 is 45698172302.

It is a semiprime because it is the product of two primes.

It is a junction number, because it is equal to n+sod(n) for n = 20327189599 and 20327189608.

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 as a sum of consecutive naturals, namely, 5081797412 + ... + 5081797415.

It is an arithmetic number, because the mean of its divisors is an integer number (7622696121).

It is a 1-persistent number, because it is pandigital, but 2⋅20327189654 = 40654379308 is not.

Almost surely, 2^20327189654 is an apocalyptic number.

20327189654 is a deficient number, since it is larger than the sum of its proper divisors (10163594830).

20327189654 is a wasteful number, since it uses less digits than its factorization.

20327189654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10163594829.

The product of its (nonzero) digits is 725760, while the sum is 47.

The spelling of 20327189654 in words is "twenty billion, three hundred twenty-seven million, one hundred eighty-nine thousand, six hundred fifty-four".