49999808007871 has 2 divisors, whose sum is σ = 49999808007872. Its totient is φ = 49999808007870.

The previous prime is 49999808007749. The next prime is 49999808007887. The reversal of 49999808007871 is 17870080899994.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49999808007871 - 2¹⁹ = 49999807483583 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49999808007791 and 49999808007800.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49999808037871) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24999904003935 + 24999904003936.

It is an arithmetic number, because the mean of its divisors is an integer number (24999904003936).

Almost surely, 2^{49999808007871} is an apocalyptic number.

49999808007871 is a deficient number, since it is larger than the sum of its proper divisors (1).

49999808007871 is an equidigital number, since it uses as much as digits as its factorization.

49999808007871 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 658409472, while the sum is 79.

The spelling of 49999808007871 in words is "forty-nine trillion, nine hundred ninety-nine billion, eight hundred eight million, seven thousand, eight hundred seventy-one".