1121748437457 has 48 divisors (see below), whose sum is σ = 1695388810752. Its totient is φ = 714171064320.

The previous prime is 1121748437437. The next prime is 1121748437483. The reversal of 1121748437457 is 7547348471211.

1121748437457 is a `hidden beast` number, since 1 + 1 + 217 + 4 + 8 + 4 + 374 + 57 = 666.

It is not a de Polignac number, because 1121748437457 - 2⁴⁰ = 22236809681 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121748437437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2720673 + ... + 3105729.

It is an arithmetic number, because the mean of its divisors is an integer number (35320600224).

Almost surely, 2^{1121748437457} is an apocalyptic number.

It is an amenable number.

1121748437457 is a deficient number, since it is larger than the sum of its proper divisors (573640373295).

1121748437457 is a wasteful number, since it uses less digits than its factorization.

1121748437457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 385278 (or 385275 counting only the distinct ones).

The product of its digits is 5268480, while the sum is 54.

The spelling of 1121748437457 in words is "one trillion, one hundred twenty-one billion, seven hundred forty-eight million, four hundred thirty-seven thousand, four hundred fifty-seven".