228851832722 has 6 divisors (see below), whose sum is σ = 343278763893. Its totient is φ = 114425578092.

The previous prime is 228851832707. The next prime is 228851832743. The reversal of 228851832722 is 227238158822.

It can be written as a sum of positive squares in 2 ways, for example, as 208046366641 + 20805466081 = 456121^2 + 144241^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=338269.

It is a super-2 number, since 2×228851832722² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 507404 + ... + 845672.

Almost surely, 2^228851832722 is an apocalyptic number.

228851832722 is a deficient number, since it is larger than the sum of its proper divisors (114426931171).

228851832722 is an frugal number, since it uses more digits than its factorization.

228851832722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 676540 (or 338271 counting only the distinct ones).

The product of its digits is 1720320, while the sum is 50.

Multiplying 228851832722 by its sum of digits (50), we get a square (11442591636100 = 3382690²).

The spelling of 228851832722 in words is "two hundred twenty-eight billion, eight hundred fifty-one million, eight hundred thirty-two thousand, seven hundred twenty-two".