27473144130861 has 48 divisors (see below), whose sum is σ = 43387057422912. Its totient is φ = 15360311197440.

The previous prime is 27473144130851. The next prime is 27473144130863. The reversal of 27473144130861 is 16803144137472.

It is not a de Polignac number, because 27473144130861 - 2¹⁸ = 27473143868717 is a prime.

It is a super-2 number, since 2×27473144130861² (a number of 28 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27473144130863) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6062650 + ... + 9576116.

It is an arithmetic number, because the mean of its divisors is an integer number (903897029644).

Almost surely, 2^{27473144130861} is an apocalyptic number.

It is an amenable number.

27473144130861 is a deficient number, since it is larger than the sum of its proper divisors (15913913292051).

27473144130861 is a wasteful number, since it uses less digits than its factorization.

27473144130861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3515162 (or 3515151 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 51.

The spelling of 27473144130861 in words is "twenty-seven trillion, four hundred seventy-three billion, one hundred forty-four million, one hundred thirty thousand, eight hundred sixty-one".