50406851869 has 4 divisors (see below), whose sum is σ = 54989292960. Its totient is φ = 45824410780.

The previous prime is 50406851863. The next prime is 50406851921. The reversal of 50406851869 is 96815860405.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50406851869 - 2⁹ = 50406851357 is a prime.

It is a super-2 number, since 2×50406851869² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50406851863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2291220529 + ... + 2291220550.

It is an arithmetic number, because the mean of its divisors is an integer number (13747323240).

Almost surely, 2^50406851869 is an apocalyptic number.

It is an amenable number.

50406851869 is a deficient number, since it is larger than the sum of its proper divisors (4582441091).

50406851869 is a wasteful number, since it uses less digits than its factorization.

50406851869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4582441090.

The product of its (nonzero) digits is 2073600, while the sum is 52.

The spelling of 50406851869 in words is "fifty billion, four hundred six million, eight hundred fifty-one thousand, eight hundred sixty-nine".