27449161152 has 56 divisors (see below), whose sum is σ = 83001038976. Its totient is φ = 7842617088.

The previous prime is 27449161139. The next prime is 27449161213. The reversal of 27449161152 is 25116194472.

It is a tau number, because it is divible by the number of its divisors (56).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10210398 + ... + 10213085.

Almost surely, 2^27449161152 is an apocalyptic number.

It is an amenable number.

27449161152 is an abundant number, since it is smaller than the sum of its proper divisors (55551877824).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

27449161152 is a wasteful number, since it uses less digits than its factorization.

27449161152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20423505 (or 20423495 counting only the distinct ones).

The product of its digits is 120960, while the sum is 42.

The spelling of 27449161152 in words is "twenty-seven billion, four hundred forty-nine million, one hundred sixty-one thousand, one hundred fifty-two".