50478099613 has 4 divisors (see below), whose sum is σ = 50492406940. Its totient is φ = 50463792288.

The previous prime is 50478099587. The next prime is 50478099629. The reversal of 50478099613 is 31699087405.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 15961290244 + 34516809369 = 126338^2 + 185787^2 .

It is a cyclic number.

It is not a de Polignac number, because 50478099613 - 2²⁵ = 50444545181 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 (50478099313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7148370 + ... + 7155427.

It is an arithmetic number, because the mean of its divisors is an integer number (12623101735).

Almost surely, 2^50478099613 is an apocalyptic number.

It is an amenable number.

50478099613 is a deficient number, since it is larger than the sum of its proper divisors (14307327).

50478099613 is a wasteful number, since it uses less digits than its factorization.

50478099613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14307326.

The product of its (nonzero) digits is 1632960, while the sum is 52.

The spelling of 50478099613 in words is "fifty billion, four hundred seventy-eight million, ninety-nine thousand, six hundred thirteen".