50665638543850 has 48 divisors (see below), whose sum is σ = 108852550508736. Its totient is φ = 17340111584000.

The previous prime is 50665638543847. The next prime is 50665638543881. The reversal of 50665638543850 is 5834583656605.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2709383086 + ... + 2709401785.

It is an arithmetic number, because the mean of its divisors is an integer number (2267761468932).

Almost surely, 2^{50665638543850} is an apocalyptic number.

50665638543850 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

50665638543850 is an abundant number, since it is smaller than the sum of its proper divisors (58186911964886).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50665638543850 is a wasteful number, since it uses less digits than its factorization.

50665638543850 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5418784911 (or 5418784906 counting only the distinct ones).

The product of its (nonzero) digits is 311040000, while the sum is 64.

The spelling of 50665638543850 in words is "fifty trillion, six hundred sixty-five billion, six hundred thirty-eight million, five hundred forty-three thousand, eight hundred fifty".