28461587418 has 24 divisors (see below), whose sum is σ = 67272843456. Its totient is φ = 8624723400.

The previous prime is 28461587417. The next prime is 28461587431. The reversal of 28461587418 is 81478516482.

28461587418 is a `hidden beast` number, since 2 + 8 + 4 + 615 + 8 + 7 + 4 + 18 = 666.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (28461587417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71872498 + ... + 71872893.

It is an arithmetic number, because the mean of its divisors is an integer number (2803035144).

Almost surely, 2^28461587418 is an apocalyptic number.

28461587418 is an abundant number, since it is smaller than the sum of its proper divisors (38811256038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28461587418 is a wasteful number, since it uses less digits than its factorization.

28461587418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143745410 (or 143745407 counting only the distinct ones).

The product of its digits is 3440640, while the sum is 54.

The spelling of 28461587418 in words is "twenty-eight billion, four hundred sixty-one million, five hundred eighty-seven thousand, four hundred eighteen".