28114540421 has 8 divisors (see below), whose sum is σ = 30708235488. Its totient is φ = 25527150000.

The previous prime is 28114540411. The next prime is 28114540439. The reversal of 28114540421 is 12404541182.

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

It is not a de Polignac number, because 28114540421 - 2¹⁸ = 28114278277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28114540411) 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, 1566830 + ... + 1584671.

It is an arithmetic number, because the mean of its divisors is an integer number (3838529436).

Almost surely, 2^28114540421 is an apocalyptic number.

It is an amenable number.

28114540421 is a deficient number, since it is larger than the sum of its proper divisors (2593695067).

28114540421 is a wasteful number, since it uses less digits than its factorization.

28114540421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3152323.

The product of its (nonzero) digits is 10240, while the sum is 32.

The spelling of 28114540421 in words is "twenty-eight billion, one hundred fourteen million, five hundred forty thousand, four hundred twenty-one".