1228293572828 has 36 divisors (see below), whose sum is σ = 2510917022880. Its totient is φ = 524208952512.

The previous prime is 1228293572801. The next prime is 1228293572861. The reversal of 1228293572828 is 8282753928221.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13063625 + ... + 13157312.

It is an arithmetic number, because the mean of its divisors is an integer number (69747695080).

Almost surely, 2^{1228293572828} is an apocalyptic number.

It is an amenable number.

1228293572828 is an abundant number, since it is smaller than the sum of its proper divisors (1282623450052).

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

1228293572828 is a wasteful number, since it uses less digits than its factorization.

1228293572828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26221194 (or 26221185 counting only the distinct ones).

The product of its digits is 15482880, while the sum is 59.

The spelling of 1228293572828 in words is "one trillion, two hundred twenty-eight billion, two hundred ninety-three million, five hundred seventy-two thousand, eight hundred twenty-eight".