50398654319 has 4 divisors (see below), whose sum is σ = 54275473896. Its totient is φ = 46521834744.

The previous prime is 50398654301. The next prime is 50398654321. The reversal of 50398654319 is 91345689305.

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 50398654319 - 2²⁸ = 50130218863 is a prime.

It is a super-2 number, since 2×50398654319² (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 (50398624319) 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, 1938409769 + ... + 1938409794.

It is an arithmetic number, because the mean of its divisors is an integer number (13568868474).

Almost surely, 2^50398654319 is an apocalyptic number.

50398654319 is a deficient number, since it is larger than the sum of its proper divisors (3876819577).

50398654319 is a wasteful number, since it uses less digits than its factorization.

50398654319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3876819576.

The product of its (nonzero) digits is 3499200, while the sum is 53.

The spelling of 50398654319 in words is "fifty billion, three hundred ninety-eight million, six hundred fifty-four thousand, three hundred nineteen".