1556804828049 has 32 divisors (see below), whose sum is σ = 2128623383040. Its totient is φ = 1011535402752.

The previous prime is 1556804828039. The next prime is 1556804828069. The reversal of 1556804828049 is 9408284086551.

It is not a de Polignac number, because 1556804828049 - 2¹¹ = 1556804826001 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1556804827983 and 1556804828001.

It is not an unprimeable number, because it can be changed into a prime (1556804828039) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 118049434 + ... + 118062620.

It is an arithmetic number, because the mean of its divisors is an integer number (66519480720).

Almost surely, 2^{1556804828049} is an apocalyptic number.

It is an amenable number.

1556804828049 is a deficient number, since it is larger than the sum of its proper divisors (571818554991).

1556804828049 is a wasteful number, since it uses less digits than its factorization.

1556804828049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15149.

The product of its (nonzero) digits is 22118400, while the sum is 60.

The spelling of 1556804828049 in words is "one trillion, five hundred fifty-six billion, eight hundred four million, eight hundred twenty-eight thousand, forty-nine".