27813688901 has 8 divisors (see below), whose sum is σ = 29104207104. Its totient is φ = 26547752160.

The previous prime is 27813688891. The next prime is 27813688907. The reversal of 27813688901 is 10988631872.

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 27813688901 - 2²² = 27809494597 is a prime.

It is a super-2 number, since 2×27813688901² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27813688907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6143051 + ... + 6147576.

It is an arithmetic number, because the mean of its divisors is an integer number (3638025888).

Almost surely, 2^27813688901 is an apocalyptic number.

It is an amenable number.

27813688901 is a deficient number, since it is larger than the sum of its proper divisors (1290518203).

27813688901 is a wasteful number, since it uses less digits than its factorization.

27813688901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12290731.

The product of its (nonzero) digits is 1161216, while the sum is 53.

The spelling of 27813688901 in words is "twenty-seven billion, eight hundred thirteen million, six hundred eighty-eight thousand, nine hundred one".