28533335457 has 32 divisors (see below), whose sum is σ = 42164470656. Its totient is φ = 17018380800.

The previous prime is 28533335431. The next prime is 28533335461. The reversal of 28533335457 is 75453333582.

It is a de Polignac number, because none of the positive numbers 2^k-28533335457 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28533335477) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1097703 + ... + 1123395.

It is an arithmetic number, because the mean of its divisors is an integer number (1317639708).

Almost surely, 2^28533335457 is an apocalyptic number.

It is an amenable number.

28533335457 is a deficient number, since it is larger than the sum of its proper divisors (13631135199).

28533335457 is a wasteful number, since it uses less digits than its factorization.

28533335457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26241.

The product of its digits is 4536000, while the sum is 48.

The spelling of 28533335457 in words is "twenty-eight billion, five hundred thirty-three million, three hundred thirty-five thousand, four hundred fifty-seven".