1648928629 has 2 divisors, whose sum is σ = 1648928630. Its totient is φ = 1648928628.

The previous prime is 1648928609. The next prime is 1648928689. The reversal of 1648928629 is 9268298461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1648197604 + 731025 = 40598^2 + 855^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1648928629 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1648928629.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1648928609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 824464314 + 824464315.

It is an arithmetic number, because the mean of its divisors is an integer number (824464315).

Almost surely, 2^1648928629 is an apocalyptic number.

It is an amenable number.

1648928629 is a deficient number, since it is larger than the sum of its proper divisors (1).

1648928629 is an equidigital number, since it uses as much as digits as its factorization.

1648928629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2985984, while the sum is 55.

The square root of 1648928629 is about 40607.0022163666. The cubic root of 1648928629 is about 1181.4099370276.

The spelling of 1648928629 in words is "one billion, six hundred forty-eight million, nine hundred twenty-eight thousand, six hundred twenty-nine".