49856720659 has 2 divisors, whose sum is σ = 49856720660. Its totient is φ = 49856720658.

The previous prime is 49856720633. The next prime is 49856720671. The reversal of 49856720659 is 95602765894.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49856720659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 49856720597 and 49856720606.

It is not a weakly prime, because it can be changed into another prime (49856720609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24928360329 + 24928360330.

It is an arithmetic number, because the mean of its divisors is an integer number (24928360330).

Almost surely, 2^49856720659 is an apocalyptic number.

49856720659 is a deficient number, since it is larger than the sum of its proper divisors (1).

49856720659 is an equidigital number, since it uses as much as digits as its factorization.

49856720659 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32659200, while the sum is 61.

The spelling of 49856720659 in words is "forty-nine billion, eight hundred fifty-six million, seven hundred twenty thousand, six hundred fifty-nine".