27861040519 has 4 divisors (see below), whose sum is σ = 30004197496. Its totient is φ = 25717883544.

The previous prime is 27861040489. The next prime is 27861040523. The reversal of 27861040519 is 91504016872.

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

It is a cyclic number.

It is not a de Polignac number, because 27861040519 - 2⁷ = 27861040391 is a prime.

It is a super-2 number, since 2×27861040519² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27861050519) 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, 1071578469 + ... + 1071578494.

It is an arithmetic number, because the mean of its divisors is an integer number (7501049374).

Almost surely, 2^27861040519 is an apocalyptic number.

27861040519 is a deficient number, since it is larger than the sum of its proper divisors (2143156977).

27861040519 is a wasteful number, since it uses less digits than its factorization.

27861040519 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2143156976.

The product of its (nonzero) digits is 120960, while the sum is 43.

The spelling of 27861040519 in words is "twenty-seven billion, eight hundred sixty-one million, forty thousand, five hundred nineteen".