27344447481 has 32 divisors (see below), whose sum is σ = 40675138560. Its totient is φ = 16226380800.

The previous prime is 27344447479. The next prime is 27344447489. The reversal of 27344447481 is 18474444372.

It is not a de Polignac number, because 27344447481 - 2¹ = 27344447479 is a prime.

It is a super-2 number, since 2×27344447481² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 27344447481.

It is not an unprimeable number, because it can be changed into a prime (27344447489) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 299485 + ... + 379973.

It is an arithmetic number, because the mean of its divisors is an integer number (1271098080).

Almost surely, 2^27344447481 is an apocalyptic number.

It is an amenable number.

27344447481 is a deficient number, since it is larger than the sum of its proper divisors (13330691079).

27344447481 is a wasteful number, since it uses less digits than its factorization.

27344447481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80817.

The product of its digits is 2408448, while the sum is 48.

It can be divided in two parts, 27344 and 447481, that added together give a triangular number (474825 = T₉₇₄).

The spelling of 27344447481 in words is "twenty-seven billion, three hundred forty-four million, four hundred forty-seven thousand, four hundred eighty-one".