50138845979 has 6 divisors (see below), whose sum is σ = 51228329724. Its totient is φ = 49072059860.

The previous prime is 50138845963. The next prime is 50138846029. The reversal of 50138845979 is 97954883105.

It is not a de Polignac number, because 50138845979 - 2⁴ = 50138845963 is a prime.

It is a super-2 number, since 2×50138845979² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (50138845579) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11346557 + ... + 11350974.

It is an arithmetic number, because the mean of its divisors is an integer number (8538054954).

Almost surely, 2^50138845979 is an apocalyptic number.

50138845979 is a deficient number, since it is larger than the sum of its proper divisors (1089483745).

50138845979 is an equidigital number, since it uses as much as digits as its factorization.

50138845979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22697625 (or 22697578 counting only the distinct ones).

The product of its (nonzero) digits is 10886400, while the sum is 59.

The spelling of 50138845979 in words is "fifty billion, one hundred thirty-eight million, eight hundred forty-five thousand, nine hundred seventy-nine".