50398481639 has 8 divisors (see below), whose sum is σ = 58214289168. Its totient is φ = 43121695360.

The previous prime is 50398481603. The next prime is 50398481677. The reversal of 50398481639 is 93618489305.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 50398481639 - 2²⁴ = 50381704423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50398481039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 134755112 + ... + 134755485.

It is an arithmetic number, because the mean of its divisors is an integer number (7276786146).

Almost surely, 2^50398481639 is an apocalyptic number.

50398481639 is a deficient number, since it is larger than the sum of its proper divisors (7815807529).

50398481639 is a wasteful number, since it uses less digits than its factorization.

50398481639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269510625.

The product of its (nonzero) digits is 5598720, while the sum is 56.

The spelling of 50398481639 in words is "fifty billion, three hundred ninety-eight million, four hundred eighty-one thousand, six hundred thirty-nine".