1121590635728 has 20 divisors (see below), whose sum is σ = 2243181272448. Its totient is φ = 542705146080.

The previous prime is 1121590635637. The next prime is 1121590635749. The reversal of 1121590635728 is 8275360951211.

1121590635728 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1130635226 + ... + 1130636217.

Almost surely, 2^{1121590635728} is an apocalyptic number.

It is an amenable number.

1121590635728 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1121590635728 is a wasteful number, since it uses less digits than its factorization.

1121590635728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2261271482 (or 2261271476 counting only the distinct ones).

The product of its (nonzero) digits is 907200, while the sum is 50.

The spelling of 1121590635728 in words is "one trillion, one hundred twenty-one billion, five hundred ninety million, six hundred thirty-five thousand, seven hundred twenty-eight".