28140084501 has 8 divisors (see below), whose sum is σ = 39494855520. Its totient is φ = 17772684912.

The previous prime is 28140084481. The next prime is 28140084503. The reversal of 28140084501 is 10548004182.

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

It is not a de Polignac number, because 28140084501 - 2²¹ = 28137987349 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28140084503) 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, 246842790 + ... + 246842903.

It is an arithmetic number, because the mean of its divisors is an integer number (4936856940).

Almost surely, 2^28140084501 is an apocalyptic number.

It is an amenable number.

28140084501 is a deficient number, since it is larger than the sum of its proper divisors (11354771019).

28140084501 is a wasteful number, since it uses less digits than its factorization.

28140084501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 493685715.

The product of its (nonzero) digits is 10240, while the sum is 33.

Adding to 28140084501 its reverse (10548004182), we get a palindrome (38688088683).

The spelling of 28140084501 in words is "twenty-eight billion, one hundred forty million, eighty-four thousand, five hundred one".