50671518902449 has 27 divisors (see below), whose sum is σ = 55326536247843. Its totient is φ = 46397799468288.

The previous prime is 50671518902441. The next prime is 50671518902507. The reversal of 50671518902449 is 94420981517605.

The square root of 50671518902449 is 7118393.

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

It can be written as a sum of positive squares in 13 ways, for example, as 15271018074225 + 35400500828224 = 3907815^2 + 5949832^2 .

It is not a de Polignac number, because 50671518902449 - 2³ = 50671518902441 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50671518902441) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 4477463539 + ... + 4477474855.

Almost surely, 2^{50671518902449} is an apocalyptic number.

50671518902449 is the 7118393-rd square number.

50671518902449 is the 3559197-th centered octagonal number.

It is an amenable number.

50671518902449 is a deficient number, since it is larger than the sum of its proper divisors (4655017345394).

50671518902449 is an frugal number, since it uses more digits than its factorization.

50671518902449 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22742 (or 11371 counting only the distinct ones).

The product of its (nonzero) digits is 21772800, while the sum is 61.

The spelling of 50671518902449 in words is "fifty trillion, six hundred seventy-one billion, five hundred eighteen million, nine hundred two thousand, four hundred forty-nine".