50268778849 has 9 divisors (see below), whose sum is σ = 50664436563. Its totient is φ = 49876192392.

The previous prime is 50268778831. The next prime is 50268778853. The reversal of 50268778849 is 94887786205.

The square root of 50268778849 is 224207.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 31408700625 + 18860078224 = 177225^2 + 137332^2 .

It is not a de Polignac number, because 50268778849 - 2²⁹ = 49731907937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50268778829) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 31163967 + ... + 31165579.

Almost surely, 2^50268778849 is an apocalyptic number.

50268778849 is the 224207-th square number.

50268778849 is the 112104-th centered octagonal number.

It is an amenable number.

50268778849 is a deficient number, since it is larger than the sum of its proper divisors (395657714).

50268778849 is an frugal number, since it uses more digits than its factorization.

50268778849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3504 (or 1752 counting only the distinct ones).

The product of its (nonzero) digits is 54190080, while the sum is 64.

Multiplying 50268778849 by its sum of digits (64), we get a square (3217201846336 = 1793656²).

The spelling of 50268778849 in words is "fifty billion, two hundred sixty-eight million, seven hundred seventy-eight thousand, eight hundred forty-nine".