27987269361 has 8 divisors (see below), whose sum is σ = 37319678400. Its totient is φ = 18656519952.

The previous prime is 27987269341. The next prime is 27987269381. The reversal of 27987269361 is 16396278972.

It is an interprime number because it is at equal distance from previous prime (27987269341) and next prime (27987269381).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 27987269361 - 2²⁶ = 27920160497 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27987269295 and 27987269304.

It is not an unprimeable number, because it can be changed into a prime (27987269341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 375010 + ... + 443403.

It is an arithmetic number, because the mean of its divisors is an integer number (4664959800).

Almost surely, 2^27987269361 is an apocalyptic number.

It is an amenable number.

27987269361 is a deficient number, since it is larger than the sum of its proper divisors (9332409039).

27987269361 is a wasteful number, since it uses less digits than its factorization.

27987269361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829815.

The product of its digits is 13716864, while the sum is 60.

The spelling of 27987269361 in words is "twenty-seven billion, nine hundred eighty-seven million, two hundred sixty-nine thousand, three hundred sixty-one".