50428646323969 has 3 divisors (see below), whose sum is σ = 50428653425283. Its totient is φ = 50428639222656.

The previous prime is 50428646323967. The next prime is 50428646323999. The reversal of 50428646323969 is 96932364682405.

The square root of 50428646323969 is 7101313.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in only one way, i.e., 45610234996225 + 4818411327744 = 6753535^2 + 2195088^2 .

It is not a de Polignac number, because 50428646323969 - 2¹ = 50428646323967 is a prime.

It is a super-2 number, since 2×50428646323969² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50428646323967) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 3550657 + ... + 10651969.

It is an arithmetic number, because the mean of its divisors is an integer number (16809551141761).

Almost surely, 2^{50428646323969} is an apocalyptic number.

50428646323969 is the 7101313-rd square number.

50428646323969 is the 3550657-th centered octagonal number.

It is an amenable number.

50428646323969 is a deficient number, since it is larger than the sum of its proper divisors (7101314).

50428646323969 is an frugal number, since it uses more digits than its factorization.

50428646323969 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14202626 (or 7101313 counting only the distinct ones).

The product of its (nonzero) digits is 403107840, while the sum is 67.

The spelling of 50428646323969 in words is "fifty trillion, four hundred twenty-eight billion, six hundred forty-six million, three hundred twenty-three thousand, nine hundred sixty-nine".