228074117775490 has 64 divisors (see below), whose sum is σ = 469368764916480. Its totient is φ = 78165557084160.

The previous prime is 228074117775473. The next prime is 228074117775577. The reversal of 228074117775490 is 94577711470822.

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, 3946368034 + ... + 3946425826.

It is an arithmetic number, because the mean of its divisors is an integer number (7333886951820).

Almost surely, 2^{228074117775490} is an apocalyptic number.

228074117775490 is an abundant number, since it is smaller than the sum of its proper divisors (241294647140990).

228074117775490 is a wasteful number, since it uses less digits than its factorization.

228074117775490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79387.

The product of its (nonzero) digits is 55319040, while the sum is 64.

The spelling of 228074117775490 in words is "two hundred twenty-eight trillion, seventy-four billion, one hundred seventeen million, seven hundred seventy-five thousand, four hundred ninety".