27258761387 has 8 divisors (see below), whose sum is σ = 32024279280. Its totient is φ = 22874484960.

The previous prime is 27258761377. The next prime is 27258761389. The reversal of 27258761387 is 78316785272.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27258761387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27258761389) 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, 95310212 + ... + 95310497.

It is an arithmetic number, because the mean of its divisors is an integer number (4003034910).

Almost surely, 2^27258761387 is an apocalyptic number.

27258761387 is a deficient number, since it is larger than the sum of its proper divisors (4765517893).

27258761387 is a wasteful number, since it uses less digits than its factorization.

27258761387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190620733.

The product of its digits is 7902720, while the sum is 56.

The spelling of 27258761387 in words is "twenty-seven billion, two hundred fifty-eight million, seven hundred sixty-one thousand, three hundred eighty-seven".