28750940458 has 16 divisors (see below), whose sum is σ = 43319744640. Its totient is φ = 14311061856.

The previous prime is 28750940453. The next prime is 28750940479. The reversal of 28750940458 is 85404905782.

It is a super-2 number, since 2×28750940458² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28750940453) 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, 2136166 + ... + 2149582.

It is an arithmetic number, because the mean of its divisors is an integer number (2707484040).

Almost surely, 2^28750940458 is an apocalyptic number.

28750940458 is a deficient number, since it is larger than the sum of its proper divisors (14568804182).

28750940458 is a wasteful number, since it uses less digits than its factorization.

28750940458 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18141.

The product of its (nonzero) digits is 3225600, while the sum is 52.

The spelling of 28750940458 in words is "twenty-eight billion, seven hundred fifty million, nine hundred forty thousand, four hundred fifty-eight".