49151776829 has 2 divisors, whose sum is σ = 49151776830. Its totient is φ = 49151776828.

The previous prime is 49151776783. The next prime is 49151776831. The reversal of 49151776829 is 92867715194.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49151776804 + 25 = 221702^2 + 5^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-49151776829 is a prime.

Together with 49151776831, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (49151776879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24575888414 + 24575888415.

It is an arithmetic number, because the mean of its divisors is an integer number (24575888415).

Almost surely, 2^49151776829 is an apocalyptic number.

It is an amenable number.

49151776829 is a deficient number, since it is larger than the sum of its proper divisors (1).

49151776829 is an equidigital number, since it uses as much as digits as its factorization.

49151776829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7620480, while the sum is 59.

The spelling of 49151776829 in words is "forty-nine billion, one hundred fifty-one million, seven hundred seventy-six thousand, eight hundred twenty-nine".