20502321627 has 4 divisors (see below), whose sum is σ = 27336428840. Its totient is φ = 13668214416.

The previous prime is 20502321617. The next prime is 20502321641. The reversal of 20502321627 is 72612320502.

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

It is not a de Polignac number, because 20502321627 - 2¹² = 20502317531 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20502321594 and 20502321603.

It is not an unprimeable number, because it can be changed into a prime (20502321607) 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, 3417053602 + ... + 3417053607.

It is an arithmetic number, because the mean of its divisors is an integer number (6834107210).

Almost surely, 2^20502321627 is an apocalyptic number.

20502321627 is a deficient number, since it is larger than the sum of its proper divisors (6834107213).

20502321627 is an equidigital number, since it uses as much as digits as its factorization.

20502321627 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6834107212.

The product of its (nonzero) digits is 10080, while the sum is 30.

The spelling of 20502321627 in words is "twenty billion, five hundred two million, three hundred twenty-one thousand, six hundred twenty-seven".