28908833356 has 24 divisors (see below), whose sum is σ = 54490269680. Its totient is φ = 13340521152.

The previous prime is 28908833339. The next prime is 28908833399. The reversal of 28908833356 is 65333880982.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28908833297 and 28908833306.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337915 + ... + 414733.

Almost surely, 2^28908833356 is an apocalyptic number.

28908833356 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

28908833356 is a deficient number, since it is larger than the sum of its proper divisors (25581436324).

28908833356 is a wasteful number, since it uses less digits than its factorization.

28908833356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84073 (or 84071 counting only the distinct ones).

The product of its (nonzero) digits is 7464960, while the sum is 55.

The spelling of 28908833356 in words is "twenty-eight billion, nine hundred eight million, eight hundred thirty-three thousand, three hundred fifty-six".