49820546729 has 2 divisors, whose sum is σ = 49820546730. Its totient is φ = 49820546728.

The previous prime is 49820546719. The next prime is 49820546837. The reversal of 49820546729 is 92764502894.

It is a happy number.

49820546729 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39779504704 + 10041042025 = 199448^2 + 100205^2 .

It is a cyclic number.

It is not a de Polignac number, because 49820546729 - 2²⁰ = 49819498153 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (49820546719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24910273364 + 24910273365.

It is an arithmetic number, because the mean of its divisors is an integer number (24910273365).

Almost surely, 2^49820546729 is an apocalyptic number.

It is an amenable number.

49820546729 is a deficient number, since it is larger than the sum of its proper divisors (1).

49820546729 is an equidigital number, since it uses as much as digits as its factorization.

49820546729 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8709120, while the sum is 56.

The spelling of 49820546729 in words is "forty-nine billion, eight hundred twenty million, five hundred forty-six thousand, seven hundred twenty-nine".