27143521732 has 12 divisors (see below), whose sum is σ = 49139134380. Its totient is φ = 13103769056.

The previous prime is 27143521729. The next prime is 27143521739. The reversal of 27143521732 is 23712534172.

It can be written as a sum of positive squares in 2 ways, for example, as 8455538116 + 18687983616 = 91954^2 + 136704^2 .

It is a junction number, because it is equal to n+sod(n) for n = 27143521691 and 27143521700.

It is not an unprimeable number, because it can be changed into a prime (27143521739) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116997823 + ... + 116998054.

It is an arithmetic number, because the mean of its divisors is an integer number (4094927865).

Almost surely, 2^27143521732 is an apocalyptic number.

It is an amenable number.

27143521732 is a deficient number, since it is larger than the sum of its proper divisors (21995612648).

27143521732 is a wasteful number, since it uses less digits than its factorization.

27143521732 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233995910 (or 233995908 counting only the distinct ones).

The product of its digits is 70560, while the sum is 37.

The spelling of 27143521732 in words is "twenty-seven billion, one hundred forty-three million, five hundred twenty-one thousand, seven hundred thirty-two".