49680636191 has 2 divisors, whose sum is σ = 49680636192. Its totient is φ = 49680636190.

The previous prime is 49680636167. The next prime is 49680636259. The reversal of 49680636191 is 19163608694.

49680636191 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 is a cyclic number.

It is not a de Polignac number, because 49680636191 - 2³⁰ = 48606894367 is a prime.

It is a super-2 number, since 2×49680636191² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49680636151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24840318095 + 24840318096.

It is an arithmetic number, because the mean of its divisors is an integer number (24840318096).

Almost surely, 2^49680636191 is an apocalyptic number.

49680636191 is a deficient number, since it is larger than the sum of its proper divisors (1).

49680636191 is an equidigital number, since it uses as much as digits as its factorization.

49680636191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1679616, while the sum is 53.

The spelling of 49680636191 in words is "forty-nine billion, six hundred eighty million, six hundred thirty-six thousand, one hundred ninety-one".