1234550505648 has 20 divisors (see below), whose sum is σ = 3189255473048. Its totient is φ = 411516835200.

The previous prime is 1234550505637. The next prime is 1234550505649. The reversal of 1234550505648 is 8465050554321.

It is a super-2 number, since 2×1234550505648² (a number of 25 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 25719802201 = 1234550505648 / (1 + 2 + 3 + 4 + 5 + 5 + 0 + 5 + 0 + 5 + 6 + 4 + 8).

It is a junction number, because it is equal to n+sod(n) for n = 1234550505597 and 1234550505606.

It is not an unprimeable number, because it can be changed into a prime (1234550505649) 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 3 ways as a sum of consecutive naturals, for example, 12859901053 + ... + 12859901148.

Almost surely, 2^{1234550505648} is an apocalyptic number.

It is an amenable number.

1234550505648 is an abundant number, since it is smaller than the sum of its proper divisors (1954704967400).

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

1234550505648 is a wasteful number, since it uses less digits than its factorization.

1234550505648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25719802212 (or 25719802206 counting only the distinct ones).

The product of its (nonzero) digits is 2880000, while the sum is 48.

The spelling of 1234550505648 in words is "one trillion, two hundred thirty-four billion, five hundred fifty million, five hundred five thousand, six hundred forty-eight".