27223857652 has 6 divisors (see below), whose sum is σ = 47641750898. Its totient is φ = 13611928824.

The previous prime is 27223857643. The next prime is 27223857697. The reversal of 27223857652 is 25675832272.

It can be written as a sum of positive squares in only one way, i.e., 19464714256 + 7759143396 = 139516^2 + 88086^2 .

It is a super-2 number, since 2×27223857652² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27223857596 and 27223857605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3402982203 + ... + 3402982210.

Almost surely, 2^27223857652 is an apocalyptic number.

It is an amenable number.

27223857652 is a deficient number, since it is larger than the sum of its proper divisors (20417893246).

27223857652 is a wasteful number, since it uses less digits than its factorization.

27223857652 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6805964417 (or 6805964415 counting only the distinct ones).

The product of its digits is 2822400, while the sum is 49.

The spelling of 27223857652 in words is "twenty-seven billion, two hundred twenty-three million, eight hundred fifty-seven thousand, six hundred fifty-two".