27977167409 has 8 divisors (see below), whose sum is σ = 29293209792. Its totient is φ = 26669428720.

The previous prime is 27977167403. The next prime is 27977167433. The reversal of 27977167409 is 90476177972.

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-27977167409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27977167403) 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, 2069027 + ... + 2082504.

It is an arithmetic number, because the mean of its divisors is an integer number (3661651224).

Almost surely, 2^27977167409 is an apocalyptic number.

It is an amenable number.

27977167409 is a deficient number, since it is larger than the sum of its proper divisors (1316042383).

27977167409 is a wasteful number, since it uses less digits than its factorization.

27977167409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4151847.

The product of its (nonzero) digits is 9335088, while the sum is 59.

The spelling of 27977167409 in words is "twenty-seven billion, nine hundred seventy-seven million, one hundred sixty-seven thousand, four hundred nine".