50001644629 has 2 divisors, whose sum is σ = 50001644630. Its totient is φ = 50001644628.

The previous prime is 50001644617. The next prime is 50001644653. The reversal of 50001644629 is 92644610005.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 49549869604 + 451775025 = 222598^2 + 21255^2 .

It is a cyclic number.

It is not a de Polignac number, because 50001644629 - 2¹⁷ = 50001513557 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (50001644699) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25000822314 + 25000822315.

It is an arithmetic number, because the mean of its divisors is an integer number (25000822315).

Almost surely, 2^50001644629 is an apocalyptic number.

It is an amenable number.

50001644629 is a deficient number, since it is larger than the sum of its proper divisors (1).

50001644629 is an equidigital number, since it uses as much as digits as its factorization.

50001644629 is an evil number, because the sum of its binary digits is even.

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

The spelling of 50001644629 in words is "fifty billion, one million, six hundred forty-four thousand, six hundred twenty-nine".