1648758863 has 2 divisors, whose sum is σ = 1648758864. Its totient is φ = 1648758862.

The previous prime is 1648758833. The next prime is 1648758899. The reversal of 1648758863 is 3688578461.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1648758863 - 2⁶ = 1648758799 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1648758799 and 1648758808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1648758823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 824379431 + 824379432.

It is an arithmetic number, because the mean of its divisors is an integer number (824379432).

Almost surely, 2^1648758863 is an apocalyptic number.

1648758863 is a deficient number, since it is larger than the sum of its proper divisors (1).

1648758863 is an equidigital number, since it uses as much as digits as its factorization.

1648758863 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7741440, while the sum is 56.

The square root of 1648758863 is about 40604.9118087948. The cubic root of 1648758863 is about 1181.3693914840.

The spelling of 1648758863 in words is "one billion, six hundred forty-eight million, seven hundred fifty-eight thousand, eight hundred sixty-three".