27777467513 has 4 divisors (see below), whose sum is σ = 27787509120. Its totient is φ = 27767425908.

The previous prime is 27777467477. The next prime is 27777467519. The reversal of 27777467513 is 31576477772.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 27777467513 - 2⁸ = 27777467257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27777467519) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5016653 + ... + 5022186.

It is an arithmetic number, because the mean of its divisors is an integer number (6946877280).

Almost surely, 2^27777467513 is an apocalyptic number.

It is an amenable number.

27777467513 is a deficient number, since it is larger than the sum of its proper divisors (10041607).

27777467513 is a wasteful number, since it uses less digits than its factorization.

27777467513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10041606.

The product of its digits is 12101040, while the sum is 56.

The spelling of 27777467513 in words is "twenty-seven billion, seven hundred seventy-seven million, four hundred sixty-seven thousand, five hundred thirteen".