49778836859 has 2 divisors, whose sum is σ = 49778836860. Its totient is φ = 49778836858.

The previous prime is 49778836843. The next prime is 49778836901. The reversal of 49778836859 is 95863887794.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 49778836859 - 2⁴ = 49778836843 is a prime.

It is a super-3 number, since 3×49778836859³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (49778836829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24889418429 + 24889418430.

It is an arithmetic number, because the mean of its divisors is an integer number (24889418430).

Almost surely, 2^49778836859 is an apocalyptic number.

49778836859 is a deficient number, since it is larger than the sum of its proper divisors (1).

49778836859 is an equidigital number, since it uses as much as digits as its factorization.

49778836859 is an evil number, because the sum of its binary digits is even.

The product of its digits is 731566080, while the sum is 74.

The spelling of 49778836859 in words is "forty-nine billion, seven hundred seventy-eight million, eight hundred thirty-six thousand, eight hundred fifty-nine".