1228714547928 has 64 divisors (see below), whose sum is σ = 3558703618560. Its totient is φ = 346252237056.

The previous prime is 1228714547923. The next prime is 1228714547969. The reversal of 1228714547928 is 8297454178221.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1228714547923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50082100 + ... + 50106627.

It is an arithmetic number, because the mean of its divisors is an integer number (55604744040).

Almost surely, 2^{1228714547928} is an apocalyptic number.

It is an amenable number.

1228714547928 is an abundant number, since it is smaller than the sum of its proper divisors (2329989070632).

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

1228714547928 is a wasteful number, since it uses less digits than its factorization.

1228714547928 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100188816 (or 100188812 counting only the distinct ones).

The product of its digits is 18063360, while the sum is 60.

The spelling of 1228714547928 in words is "one trillion, two hundred twenty-eight billion, seven hundred fourteen million, five hundred forty-seven thousand, nine hundred twenty-eight".