50213637661 has 12 divisors (see below), whose sum is σ = 55254209472. Its totient is φ = 45598553000.

The previous prime is 50213637637. The next prime is 50213637739. The reversal of 50213637661 is 16673631205.

It is not a de Polignac number, because 50213637661 - 2⁷ = 50213637533 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50210637661) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117535 + ... + 337996.

It is an arithmetic number, because the mean of its divisors is an integer number (4604517456).

Almost surely, 2^50213637661 is an apocalyptic number.

It is an amenable number.

50213637661 is a deficient number, since it is larger than the sum of its proper divisors (5040571811).

50213637661 is a wasteful number, since it uses less digits than its factorization.

50213637661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 456464 (or 456453 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 40.

The spelling of 50213637661 in words is "fifty billion, two hundred thirteen million, six hundred thirty-seven thousand, six hundred sixty-one".