27642593652 has 24 divisors (see below), whose sum is σ = 64546606656. Its totient is φ = 9207451968.

The previous prime is 27642593647. The next prime is 27642593659. The reversal of 27642593652 is 25639524672.

It is a super-2 number, since 2×27642593652² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27642593595 and 27642593604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27642593659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826153 + ... + 858960.

It is an arithmetic number, because the mean of its divisors is an integer number (2689441944).

Almost surely, 2^27642593652 is an apocalyptic number.

It is an amenable number.

27642593652 is an abundant number, since it is smaller than the sum of its proper divisors (36904013004).

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

27642593652 is a wasteful number, since it uses less digits than its factorization.

27642593652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1686487 (or 1686485 counting only the distinct ones).

The product of its digits is 5443200, while the sum is 51.

The spelling of 27642593652 in words is "twenty-seven billion, six hundred forty-two million, five hundred ninety-three thousand, six hundred fifty-two".