27932767869 has 4 divisors (see below), whose sum is σ = 37243690496. Its totient is φ = 18621845244.

The previous prime is 27932767859. The next prime is 27932767871. The reversal of 27932767869 is 96876723972.

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 not a de Polignac number, because 27932767869 - 2⁷ = 27932767741 is a prime.

It is a super-2 number, since 2×27932767869² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27932767859) 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, 4655461309 + ... + 4655461314.

It is an arithmetic number, because the mean of its divisors is an integer number (9310922624).

Almost surely, 2^27932767869 is an apocalyptic number.

It is an amenable number.

27932767869 is a deficient number, since it is larger than the sum of its proper divisors (9310922627).

27932767869 is an equidigital number, since it uses as much as digits as its factorization.

27932767869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9310922626.

The product of its digits is 96018048, while the sum is 66.

The spelling of 27932767869 in words is "twenty-seven billion, nine hundred thirty-two million, seven hundred sixty-seven thousand, eight hundred sixty-nine".