27400750481 has 8 divisors (see below), whose sum is σ = 29513444520. Its totient is φ = 25288762752.

The previous prime is 27400750463. The next prime is 27400750523. The reversal of 27400750481 is 18405700472.

It can be written as a sum of positive squares in 4 ways, for example, as 12546016081 + 14854734400 = 112009^2 + 121880^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 27400750481 - 2⁶ = 27400750417 is a prime.

It is a super-2 number, since 2×27400750481² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27400753481) 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, 94586 + ... + 252483.

It is an arithmetic number, because the mean of its divisors is an integer number (3689180565).

Almost surely, 2^27400750481 is an apocalyptic number.

It is an amenable number.

27400750481 is a deficient number, since it is larger than the sum of its proper divisors (2112694039).

27400750481 is a wasteful number, since it uses less digits than its factorization.

27400750481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353155.

The product of its (nonzero) digits is 62720, while the sum is 38.

The spelling of 27400750481 in words is "twenty-seven billion, four hundred million, seven hundred fifty thousand, four hundred eighty-one".