28046668441 has 8 divisors (see below), whose sum is σ = 31926642624. Its totient is φ = 24388407120.

The previous prime is 28046668421. The next prime is 28046668477. The reversal of 28046668441 is 14486664082.

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

It is not a de Polignac number, because 28046668441 - 2¹⁹ = 28046144153 is a prime.

It is a super-2 number, since 2×28046668441² (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 (28046668411) 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, 55427946 + ... + 55428451.

It is an arithmetic number, because the mean of its divisors is an integer number (3990830328).

Almost surely, 2^28046668441 is an apocalyptic number.

It is an amenable number.

28046668441 is a deficient number, since it is larger than the sum of its proper divisors (3879974183).

28046668441 is a wasteful number, since it uses less digits than its factorization.

28046668441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110856431.

The product of its (nonzero) digits is 1769472, while the sum is 49.

The spelling of 28046668441 in words is "twenty-eight billion, forty-six million, six hundred sixty-eight thousand, four hundred forty-one".