1648063513 has 4 divisors (see below), whose sum is σ = 1648650960. Its totient is φ = 1647476068.

The previous prime is 1648063499. The next prime is 1648063517. The reversal of 1648063513 is 3153608461.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1648063513 is a prime.

It is a super-2 number, since 2×1648063513² = 5432226685763802338, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1648063517) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289495 + ... + 295132.

It is an arithmetic number, because the mean of its divisors is an integer number (412162740).

Almost surely, 2^1648063513 is an apocalyptic number.

It is an amenable number.

1648063513 is a deficient number, since it is larger than the sum of its proper divisors (587447).

1648063513 is an equidigital number, since it uses as much as digits as its factorization.

1648063513 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587446.

The product of its (nonzero) digits is 51840, while the sum is 37.

The square root of 1648063513 is about 40596.3485180626. The cubic root of 1648063513 is about 1181.2032906402.

The spelling of 1648063513 in words is "one billion, six hundred forty-eight million, sixty-three thousand, five hundred thirteen".