28745874586 has 32 divisors (see below), whose sum is σ = 50710701888. Its totient is φ = 12048435840.

The previous prime is 28745874557. The next prime is 28745874589. The reversal of 28745874586 is 68547854782.

It is not an unprimeable number, because it can be changed into a prime (28745874589) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219825 + ... + 325291.

It is an arithmetic number, because the mean of its divisors is an integer number (1584709434).

Almost surely, 2^28745874586 is an apocalyptic number.

28745874586 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

28745874586 is a deficient number, since it is larger than the sum of its proper divisors (21964827302).

28745874586 is a wasteful number, since it uses less digits than its factorization.

28745874586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106446.

The product of its digits is 120422400, while the sum is 64.

The spelling of 28745874586 in words is "twenty-eight billion, seven hundred forty-five million, eight hundred seventy-four thousand, five hundred eighty-six".