27257438721724 has 12 divisors (see below), whose sum is σ = 47770357471704. Its totient is φ = 13608765158384.

The previous prime is 27257438721707. The next prime is 27257438721787. The reversal of 27257438721724 is 42712783475272.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4988547547 + ... + 4988553010.

It is an arithmetic number, because the mean of its divisors is an integer number (3980863122642).

Almost surely, 2^{27257438721724} is an apocalyptic number.

It is an amenable number.

27257438721724 is a deficient number, since it is larger than the sum of its proper divisors (20512918749980).

27257438721724 is a wasteful number, since it uses less digits than its factorization.

27257438721724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9977101244 (or 9977101242 counting only the distinct ones).

The product of its digits is 73758720, while the sum is 61.

The spelling of 27257438721724 in words is "twenty-seven trillion, two hundred fifty-seven billion, four hundred thirty-eight million, seven hundred twenty-one thousand, seven hundred twenty-four".