28757295842 has 30 divisors (see below), whose sum is σ = 47497171995. Its totient is φ = 13058307900.

The previous prime is 28757295823. The next prime is 28757295851. The reversal of 28757295842 is 24859275782.

It can be written as a sum of positive squares in only one way, i.e., 14378647921 + 14378647921 = 119911^2 + 119911^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=119911.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 29017967 + ... + 29018957.

Almost surely, 2^28757295842 is an apocalyptic number.

28757295842 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

28757295842 is a deficient number, since it is larger than the sum of its proper divisors (18739876153).

28757295842 is an frugal number, since it uses more digits than its factorization.

28757295842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2028 (or 1004 counting only the distinct ones).

The product of its digits is 22579200, while the sum is 59.

The spelling of 28757295842 in words is "twenty-eight billion, seven hundred fifty-seven million, two hundred ninety-five thousand, eight hundred forty-two".