49715919523139 has 2 divisors, whose sum is σ = 49715919523140. Its totient is φ = 49715919523138.

The previous prime is 49715919523057. The next prime is 49715919523141. The reversal of 49715919523139 is 93132591951794.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 49715919523139 - 2⁸ = 49715919522883 is a prime.

Together with 49715919523141, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (49715919523159) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24857959761569 + 24857959761570.

It is an arithmetic number, because the mean of its divisors is an integer number (24857959761570).

Almost surely, 2^{49715919523139} is an apocalyptic number.

49715919523139 is a deficient number, since it is larger than the sum of its proper divisors (1).

49715919523139 is an equidigital number, since it uses as much as digits as its factorization.

49715919523139 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82668600, while the sum is 68.

The spelling of 49715919523139 in words is "forty-nine trillion, seven hundred fifteen billion, nine hundred nineteen million, five hundred twenty-three thousand, one hundred thirty-nine".