28948425249 has 8 divisors (see below), whose sum is σ = 38633218432. Its totient is φ = 19281291120.

The previous prime is 28948425221. The next prime is 28948425257. The reversal of 28948425249 is 94252484982.

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

It is not a de Polignac number, because 28948425249 - 2⁹ = 28948424737 is a prime.

It is a super-2 number, since 2×28948425249² (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 (28948425049) 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, 4410937 + ... + 4417494.

It is an arithmetic number, because the mean of its divisors is an integer number (4829152304).

Almost surely, 2^28948425249 is an apocalyptic number.

It is an amenable number.

28948425249 is a deficient number, since it is larger than the sum of its proper divisors (9684793183).

28948425249 is a wasteful number, since it uses less digits than its factorization.

28948425249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8829527.

The product of its digits is 13271040, while the sum is 57.

The spelling of 28948425249 in words is "twenty-eight billion, nine hundred forty-eight million, four hundred twenty-five thousand, two hundred forty-nine".