1228454256726 has 24 divisors (see below), whose sum is σ = 2733587401584. Its totient is φ = 398417596560.

The previous prime is 1228454256721. The next prime is 1228454256727. The reversal of 1228454256726 is 6276524548221.

1228454256726 is a `hidden beast` number, since 1 + 2 + 2 + 8 + 4 + 54 + 2 + 567 + 26 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228454256721) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 922262290 + ... + 922263621.

It is an arithmetic number, because the mean of its divisors is an integer number (113899475066).

Almost surely, 2^{1228454256726} is an apocalyptic number.

1228454256726 is an abundant number, since it is smaller than the sum of its proper divisors (1505133144858).

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

1228454256726 is a wasteful number, since it uses less digits than its factorization.

1228454256726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1844525956 (or 1844525953 counting only the distinct ones).

The product of its digits is 12902400, while the sum is 54.

The spelling of 1228454256726 in words is "one trillion, two hundred twenty-eight billion, four hundred fifty-four million, two hundred fifty-six thousand, seven hundred twenty-six".