1121748437456 has 10 divisors (see below), whose sum is σ = 2173387597602. Its totient is φ = 560874218720.

The previous prime is 1121748437437. The next prime is 1121748437483. The reversal of 1121748437456 is 6547348471211.

It can be written as a sum of positive squares in only one way, i.e., 879251283856 + 242497153600 = 937684^2 + 492440^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1121748437398 and 1121748437407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35054638655 + ... + 35054638686.

Almost surely, 2^{1121748437456} is an apocalyptic number.

1121748437456 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1121748437456 is a deficient number, since it is larger than the sum of its proper divisors (1051639160146).

1121748437456 is an equidigital number, since it uses as much as digits as its factorization.

1121748437456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70109277349 (or 70109277343 counting only the distinct ones).

The product of its digits is 4515840, while the sum is 53.

The spelling of 1121748437456 in words is "one trillion, one hundred twenty-one billion, seven hundred forty-eight million, four hundred thirty-seven thousand, four hundred fifty-six".