1123620737648 has 20 divisors (see below), whose sum is σ = 2204572335840. Its totient is φ = 554698844544.

The previous prime is 1123620737611. The next prime is 1123620737671. The reversal of 1123620737648 is 8467370263211.

It is a junction number, because it is equal to n+sod(n) for n = 1123620737596 and 1123620737605.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 444468965 + ... + 444471492.

It is an arithmetic number, because the mean of its divisors is an integer number (110228616792).

Almost surely, 2^{1123620737648} is an apocalyptic number.

It is an amenable number.

1123620737648 is a deficient number, since it is larger than the sum of its proper divisors (1080951598192).

1123620737648 is an equidigital number, since it uses as much as digits as its factorization.

1123620737648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888940544 (or 888940538 counting only the distinct ones).

The product of its (nonzero) digits is 2032128, while the sum is 50.

The spelling of 1123620737648 in words is "one trillion, one hundred twenty-three billion, six hundred twenty million, seven hundred thirty-seven thousand, six hundred forty-eight".