50998167947 has 4 divisors (see below), whose sum is σ = 51571181160. Its totient is φ = 50425154736.

The previous prime is 50998167943. The next prime is 50998167949. The reversal of 50998167947 is 74976189905.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 50998167947 - 2² = 50998167943 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50998167943) 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, 286506473 + ... + 286506650.

It is an arithmetic number, because the mean of its divisors is an integer number (12892795290).

Almost surely, 2^50998167947 is an apocalyptic number.

50998167947 is a deficient number, since it is larger than the sum of its proper divisors (573013213).

50998167947 is an equidigital number, since it uses as much as digits as its factorization.

50998167947 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 573013212.

The product of its (nonzero) digits is 34292160, while the sum is 65.

The spelling of 50998167947 in words is "fifty billion, nine hundred ninety-eight million, one hundred sixty-seven thousand, nine hundred forty-seven".