27131521152 has 64 divisors (see below), whose sum is σ = 72111274560. Its totient is φ = 9038423040.

The previous prime is 27131521139. The next prime is 27131521189. The reversal of 27131521152 is 25112513172.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×27131521152² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 648253 + ... + 688835.

It is an arithmetic number, because the mean of its divisors is an integer number (1126738665).

Almost surely, 2^27131521152 is an apocalyptic number.

It is an amenable number.

27131521152 is an abundant number, since it is smaller than the sum of its proper divisors (44979753408).

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

27131521152 is a wasteful number, since it uses less digits than its factorization.

27131521152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42341 (or 42329 counting only the distinct ones).

The product of its digits is 4200, while the sum is 30.

The spelling of 27131521152 in words is "twenty-seven billion, one hundred thirty-one million, five hundred twenty-one thousand, one hundred fifty-two".