49897838273 has 2 divisors, whose sum is σ = 49897838274. Its totient is φ = 49897838272.

The previous prime is 49897838233. The next prime is 49897838279. The reversal of 49897838273 is 37283879894.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49476439489 + 421398784 = 222433^2 + 20528^2 .

It is a cyclic number.

It is not a de Polignac number, because 49897838273 - 2³² = 45602870977 is a prime.

It is not a weakly prime, because it can be changed into another prime (49897838279) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24948919136 + 24948919137.

It is an arithmetic number, because the mean of its divisors is an integer number (24948919137).

Almost surely, 2^49897838273 is an apocalyptic number.

It is an amenable number.

49897838273 is a deficient number, since it is larger than the sum of its proper divisors (1).

49897838273 is an equidigital number, since it uses as much as digits as its factorization.

49897838273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 146313216, while the sum is 68.

The spelling of 49897838273 in words is "forty-nine billion, eight hundred ninety-seven million, eight hundred thirty-eight thousand, two hundred seventy-three".