27143472405 has 16 divisors (see below), whose sum is σ = 49633778304. Its totient is φ = 12408444480.

The previous prime is 27143472353. The next prime is 27143472451. The reversal of 27143472405 is 50427434172.

It is not a de Polignac number, because 27143472405 - 2⁹ = 27143471893 is a prime.

It is a super-3 number, since 3×27143472405³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129254526 + ... + 129254735.

It is an arithmetic number, because the mean of its divisors is an integer number (3102111144).

Almost surely, 2^27143472405 is an apocalyptic number.

It is an amenable number.

27143472405 is a deficient number, since it is larger than the sum of its proper divisors (22490305899).

27143472405 is a wasteful number, since it uses less digits than its factorization.

27143472405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 258509276.

The product of its (nonzero) digits is 188160, while the sum is 39.

The spelling of 27143472405 in words is "twenty-seven billion, one hundred forty-three million, four hundred seventy-two thousand, four hundred five".