27443898004 has 6 divisors (see below), whose sum is σ = 48026821514. Its totient is φ = 13721949000.

The previous prime is 27443897891. The next prime is 27443898007. The reversal of 27443898004 is 40089834472.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 25233957904 + 2209940100 = 158852^2 + 47010^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27443898007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3430487247 + ... + 3430487254.

Almost surely, 2^27443898004 is an apocalyptic number.

It is an amenable number.

27443898004 is a deficient number, since it is larger than the sum of its proper divisors (20582923510).

27443898004 is a wasteful number, since it uses less digits than its factorization.

27443898004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6860974505 (or 6860974503 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 27443898004 in words is "twenty-seven billion, four hundred forty-three million, eight hundred ninety-eight thousand, four".