28491422047201 has 8 divisors (see below), whose sum is σ = 29158677505440. Its totient is φ = 27831880525152.

The previous prime is 28491422047189. The next prime is 28491422047211. The reversal of 28491422047201 is 10274022419482.

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 28491422047201 - 2³⁷ = 28353983093729 is a prime.

It is a super-2 number, since 2×28491422047201² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28491422047211) 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, 1928476575 + ... + 1928491348.

It is an arithmetic number, because the mean of its divisors is an integer number (3644834688180).

Almost surely, 2^{28491422047201} is an apocalyptic number.

It is an amenable number.

28491422047201 is a deficient number, since it is larger than the sum of its proper divisors (667255458239).

28491422047201 is an equidigital number, since it uses as much as digits as its factorization.

28491422047201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3856968095.

The product of its (nonzero) digits is 516096, while the sum is 46.

The spelling of 28491422047201 in words is "twenty-eight trillion, four hundred ninety-one billion, four hundred twenty-two million, forty-seven thousand, two hundred one".