27920671913 has 8 divisors (see below), whose sum is σ = 28643613120. Its totient is φ = 27206286480.

The previous prime is 27920671847. The next prime is 27920671927. The reversal of 27920671913 is 31917602972.

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

It is a cyclic number.

It is not a de Polignac number, because 27920671913 - 2¹⁶ = 27920606377 is a prime.

It is a super-3 number, since 3×27920671913³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27920671993) 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, 2132333 + ... + 2145386.

It is an arithmetic number, because the mean of its divisors is an integer number (3580451640).

Almost surely, 2^27920671913 is an apocalyptic number.

It is an amenable number.

27920671913 is a deficient number, since it is larger than the sum of its proper divisors (722941207).

27920671913 is a wasteful number, since it uses less digits than its factorization.

27920671913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4277887.

The product of its (nonzero) digits is 285768, while the sum is 47.

The spelling of 27920671913 in words is "twenty-seven billion, nine hundred twenty million, six hundred seventy-one thousand, nine hundred thirteen".