28374484427 has 8 divisors (see below), whose sum is σ = 28435456464. Its totient is φ = 28313551008.

The previous prime is 28374484421. The next prime is 28374484547. The reversal of 28374484427 is 72448447382.

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

It is a cyclic number.

It is not a de Polignac number, because 28374484427 - 2⁶ = 28374484363 is a prime.

It is a super-2 number, since 2×28374484427² (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 (28374484421) 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, 1823693 + ... + 1839185.

It is an arithmetic number, because the mean of its divisors is an integer number (3554432058).

Almost surely, 2^28374484427 is an apocalyptic number.

28374484427 is a deficient number, since it is larger than the sum of its proper divisors (60972037).

28374484427 is a wasteful number, since it uses less digits than its factorization.

28374484427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19309.

The product of its digits is 9633792, while the sum is 53.

The spelling of 28374484427 in words is "twenty-eight billion, three hundred seventy-four million, four hundred eighty-four thousand, four hundred twenty-seven".