27131855045 has 16 divisors (see below), whose sum is σ = 32718000000. Its totient is φ = 21599224128.

The previous prime is 27131854993. The next prime is 27131855071. The reversal of 27131855045 is 54055813172.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 27131855045 - 2²⁸ = 26863419589 is a prime.

It is a super-2 number, since 2×27131855045² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 27131854993 and 27131855011.

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, 855176 + ... + 886334.

It is an arithmetic number, because the mean of its divisors is an integer number (2044875000).

Almost surely, 2^27131855045 is an apocalyptic number.

It is an amenable number.

27131855045 is a deficient number, since it is larger than the sum of its proper divisors (5586144955).

27131855045 is a wasteful number, since it uses less digits than its factorization.

27131855045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32012.

The product of its (nonzero) digits is 168000, while the sum is 41.

The spelling of 27131855045 in words is "twenty-seven billion, one hundred thirty-one million, eight hundred fifty-five thousand, forty-five".