648498215051 has 2 divisors, whose sum is σ = 648498215052. Its totient is φ = 648498215050.

The previous prime is 648498215047. The next prime is 648498215143. The reversal of 648498215051 is 150512894846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 648498215051 - 2² = 648498215047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 648498214984 and 648498215002.

It is not a weakly prime, because it can be changed into another prime (648498215021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 324249107525 + 324249107526.

It is an arithmetic number, because the mean of its divisors is an integer number (324249107526).

Almost surely, 2^648498215051 is an apocalyptic number.

648498215051 is a deficient number, since it is larger than the sum of its proper divisors (1).

648498215051 is an equidigital number, since it uses as much as digits as its factorization.

648498215051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2764800, while the sum is 53.

The spelling of 648498215051 in words is "six hundred forty-eight billion, four hundred ninety-eight million, two hundred fifteen thousand, fifty-one".