50186279405 has 4 divisors (see below), whose sum is σ = 60223535292. Its totient is φ = 40149023520.

The previous prime is 50186279401. The next prime is 50186279431. The reversal of 50186279405 is 50497268105.

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 22231108201 + 27955171204 = 149101^2 + 167198^2 .

It is not a de Polignac number, because 50186279405 - 2² = 50186279401 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 50186279405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50186279401) 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, 5018627936 + ... + 5018627945.

It is an arithmetic number, because the mean of its divisors is an integer number (15055883823).

Almost surely, 2^50186279405 is an apocalyptic number.

It is an amenable number.

50186279405 is a deficient number, since it is larger than the sum of its proper divisors (10037255887).

50186279405 is a wasteful number, since it uses less digits than its factorization.

50186279405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10037255886.

The product of its (nonzero) digits is 604800, while the sum is 47.

The spelling of 50186279405 in words is "fifty billion, one hundred eighty-six million, two hundred seventy-nine thousand, four hundred five".