49865959976251 has 2 divisors, whose sum is σ = 49865959976252. Its totient is φ = 49865959976250.

The previous prime is 49865959976237. The next prime is 49865959976281. The reversal of 49865959976251 is 15267995956894.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49865959976251 - 2⁷ = 49865959976123 is a prime.

It is a super-2 number, since 2×49865959976251² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (49865959976281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24932979988125 + 24932979988126.

It is an arithmetic number, because the mean of its divisors is an integer number (24932979988126).

Almost surely, 2^{49865959976251} is an apocalyptic number.

49865959976251 is a deficient number, since it is larger than the sum of its proper divisors (1).

49865959976251 is an equidigital number, since it uses as much as digits as its factorization.

49865959976251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13226976000, while the sum is 85.

The spelling of 49865959976251 in words is "forty-nine trillion, eight hundred sixty-five billion, nine hundred fifty-nine million, nine hundred seventy-six thousand, two hundred fifty-one".