27728630401 has 8 divisors (see below), whose sum is σ = 28856560320. Its totient is φ = 26612151888.

The previous prime is 27728630389. The next prime is 27728630407. The reversal of 27728630401 is 10403682772.

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 27728630401 - 2¹¹ = 27728628353 is a prime.

It is a super-2 number, since 2×27728630401² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (27728630407) 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, 2857911 + ... + 2867596.

It is an arithmetic number, because the mean of its divisors is an integer number (3607070040).

Almost surely, 2^27728630401 is an apocalyptic number.

It is an amenable number.

27728630401 is a deficient number, since it is larger than the sum of its proper divisors (1127929919).

27728630401 is a wasteful number, since it uses less digits than its factorization.

27728630401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5725703.

The product of its (nonzero) digits is 112896, while the sum is 40.

The spelling of 27728630401 in words is "twenty-seven billion, seven hundred twenty-eight million, six hundred thirty thousand, four hundred one".