50130028781 has 8 divisors (see below), whose sum is σ = 57293083584. Its totient is φ = 42967379520.

The previous prime is 50130028777. The next prime is 50130028841. The reversal of 50130028781 is 18782003105.

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 50130028781 - 2² = 50130028777 is a prime.

It is a super-2 number, since 2×50130028781² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50130028721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240266 + ... + 397476.

It is an arithmetic number, because the mean of its divisors is an integer number (7161635448).

Almost surely, 2^50130028781 is an apocalyptic number.

It is an amenable number.

50130028781 is a deficient number, since it is larger than the sum of its proper divisors (7163054803).

50130028781 is a wasteful number, since it uses less digits than its factorization.

50130028781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202771.

The product of its (nonzero) digits is 13440, while the sum is 35.

The spelling of 50130028781 in words is "fifty billion, one hundred thirty million, twenty-eight thousand, seven hundred eighty-one".