27451460137 has 4 divisors (see below), whose sum is σ = 27476037316. Its totient is φ = 27426882960.

The previous prime is 27451460119. The next prime is 27451460143. The reversal of 27451460137 is 73106415472.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8779877401 + 18671582736 = 93701^2 + 136644^2 .

It is a cyclic number.

It is not a de Polignac number, because 27451460137 - 2²⁷ = 27317242409 is a prime.

It is a super-3 number, since 3×27451460137³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 27451460137.

It is not an unprimeable number, because it can be changed into a prime (27451460237) 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, 12286914 + ... + 12289147.

It is an arithmetic number, because the mean of its divisors is an integer number (6869009329).

Almost surely, 2^27451460137 is an apocalyptic number.

It is an amenable number.

27451460137 is a deficient number, since it is larger than the sum of its proper divisors (24577179).

27451460137 is a wasteful number, since it uses less digits than its factorization.

27451460137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24577178.

The product of its (nonzero) digits is 141120, while the sum is 40.

The spelling of 27451460137 in words is "twenty-seven billion, four hundred fifty-one million, four hundred sixty thousand, one hundred thirty-seven".