50728368413 has 4 divisors (see below), whose sum is σ = 53398282560. Its totient is φ = 48058454268.

The previous prime is 50728368347. The next prime is 50728368419. The reversal of 50728368413 is 31486382705.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 50728368413 - 2²⁰ = 50727319837 is a prime.

It is a super-2 number, since 2×50728368413² (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 (50728368419) 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, 1334957045 + ... + 1334957082.

It is an arithmetic number, because the mean of its divisors is an integer number (13349570640).

Almost surely, 2^50728368413 is an apocalyptic number.

It is an amenable number.

50728368413 is a deficient number, since it is larger than the sum of its proper divisors (2669914147).

50728368413 is a wasteful number, since it uses less digits than its factorization.

50728368413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2669914146.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 50728368413 in words is "fifty billion, seven hundred twenty-eight million, three hundred sixty-eight thousand, four hundred thirteen".