28431846518 has 16 divisors (see below), whose sum is σ = 42879182544. Its totient is φ = 14138836320.

The previous prime is 28431846517. The next prime is 28431846557. The reversal of 28431846518 is 81564813482.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28431846517) 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, 1292048 + ... + 1313868.

It is an arithmetic number, because the mean of its divisors is an integer number (2679948909).

Almost surely, 2^28431846518 is an apocalyptic number.

28431846518 is a deficient number, since it is larger than the sum of its proper divisors (14447336026).

28431846518 is a wasteful number, since it uses less digits than its factorization.

28431846518 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25327.

The product of its digits is 1474560, while the sum is 50.

The spelling of 28431846518 in words is "twenty-eight billion, four hundred thirty-one million, eight hundred forty-six thousand, five hundred eighteen".