20327001534 has 72 divisors (see below), whose sum is σ = 53928824040. Its totient is φ = 5502040992.

The previous prime is 20327001533. The next prime is 20327001547. The reversal of 20327001534 is 43510072302.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20327001498 and 20327001507.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20327001533) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 589729 + ... + 623244.

It is an arithmetic number, because the mean of its divisors is an integer number (749011445).

Almost surely, 2^20327001534 is an apocalyptic number.

20327001534 is an abundant number, since it is smaller than the sum of its proper divisors (33601822506).

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

20327001534 is a wasteful number, since it uses less digits than its factorization.

20327001534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1213014 (or 1213004 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 27.

Adding to 20327001534 its reverse (43510072302), we get a palindrome (63837073836).

The spelling of 20327001534 in words is "twenty billion, three hundred twenty-seven million, one thousand, five hundred thirty-four".