1648324620031 has 4 divisors (see below), whose sum is σ = 1648363575600. Its totient is φ = 1648285664464.

The previous prime is 1648324620001. The next prime is 1648324620077. The reversal of 1648324620031 is 1300264238461.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1648324620031 - 2⁹ = 1648324619519 is a prime.

It is a super-2 number, since 2×1648324620031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1648324620001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19414246 + ... + 19498963.

It is an arithmetic number, because the mean of its divisors is an integer number (412090893900).

Almost surely, 2^{1648324620031} is an apocalyptic number.

1648324620031 is a deficient number, since it is larger than the sum of its proper divisors (38955569).

1648324620031 is an equidigital number, since it uses as much as digits as its factorization.

1648324620031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38955568.

The product of its (nonzero) digits is 165888, while the sum is 40.

Adding to 1648324620031 its reverse (1300264238461), we get a palindrome (2948588858492).

The spelling of 1648324620031 in words is "one trillion, six hundred forty-eight billion, three hundred twenty-four million, six hundred twenty thousand, thirty-one".