28733226090 has 32 divisors (see below), whose sum is σ = 73016199360. Its totient is φ = 7211476224.

The previous prime is 28733226059. The next prime is 28733226127. The reversal of 28733226090 is 9062233782.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28169320 + ... + 28170339.

It is an arithmetic number, because the mean of its divisors is an integer number (2281756230).

Almost surely, 2^28733226090 is an apocalyptic number.

28733226090 is an abundant number, since it is smaller than the sum of its proper divisors (44282973270).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28733226090 is a wasteful number, since it uses less digits than its factorization.

28733226090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56339686.

The product of its (nonzero) digits is 217728, while the sum is 42.

The spelling of 28733226090 in words is "twenty-eight billion, seven hundred thirty-three million, two hundred twenty-six thousand, ninety".