28749233355 has 32 divisors (see below), whose sum is σ = 48429638400. Its totient is φ = 14522965632.

The previous prime is 28749233339. The next prime is 28749233369. The reversal of 28749233355 is 55333294782.

It is not a de Polignac number, because 28749233355 - 2⁴ = 28749233339 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 28749233298 and 28749233307.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2290557 + ... + 2303073.

It is an arithmetic number, because the mean of its divisors is an integer number (1513426200).

Almost surely, 2^28749233355 is an apocalyptic number.

28749233355 is a deficient number, since it is larger than the sum of its proper divisors (19680405045).

28749233355 is a wasteful number, since it uses less digits than its factorization.

28749233355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20603.

The product of its digits is 5443200, while the sum is 51.

The spelling of 28749233355 in words is "twenty-eight billion, seven hundred forty-nine million, two hundred thirty-three thousand, three hundred fifty-five".