28649489201 has 8 divisors (see below), whose sum is σ = 29576004864. Its totient is φ = 27723119760.

The previous prime is 28649489171. The next prime is 28649489237. The reversal of 28649489201 is 10298494682.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28649489201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28649489801) 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, 475871 + ... + 532683.

It is an arithmetic number, because the mean of its divisors is an integer number (3697000608).

Almost surely, 2^28649489201 is an apocalyptic number.

It is an amenable number.

28649489201 is a deficient number, since it is larger than the sum of its proper divisors (926515663).

28649489201 is a wasteful number, since it uses less digits than its factorization.

28649489201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73111.

The product of its (nonzero) digits is 1990656, while the sum is 53.

The spelling of 28649489201 in words is "twenty-eight billion, six hundred forty-nine million, four hundred eighty-nine thousand, two hundred one".