4148921865629 has 2 divisors, whose sum is σ = 4148921865630. Its totient is φ = 4148921865628.

The previous prime is 4148921865499. The next prime is 4148921865637. The reversal of 4148921865629 is 9265681298414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2941345051225 + 1207576814404 = 1715035^2 + 1098898^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4148921865629 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4148921865029) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2074460932814 + 2074460932815.

It is an arithmetic number, because the mean of its divisors is an integer number (2074460932815).

Almost surely, 2^{4148921865629} is an apocalyptic number.

It is an amenable number.

4148921865629 is a deficient number, since it is larger than the sum of its proper divisors (1).

4148921865629 is an equidigital number, since it uses as much as digits as its factorization.

4148921865629 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 59719680, while the sum is 65.

The spelling of 4148921865629 in words is "four trillion, one hundred forty-eight billion, nine hundred twenty-one million, eight hundred sixty-five thousand, six hundred twenty-nine".