50147426721 has 8 divisors (see below), whose sum is σ = 76415126464. Its totient is φ = 28655672400.

The previous prime is 50147426717. The next prime is 50147426753. The reversal of 50147426721 is 12762474105.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 50147426721 - 2² = 50147426717 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 50147426721.

It is not an unprimeable number, because it can be changed into a prime (50147426221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1193986330 + ... + 1193986371.

It is an arithmetic number, because the mean of its divisors is an integer number (9551890808).

Almost surely, 2^50147426721 is an apocalyptic number.

It is an amenable number.

50147426721 is a deficient number, since it is larger than the sum of its proper divisors (26267699743).

50147426721 is a wasteful number, since it uses less digits than its factorization.

50147426721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2387972711.

The product of its (nonzero) digits is 94080, while the sum is 39.

The spelling of 50147426721 in words is "fifty billion, one hundred forty-seven million, four hundred twenty-six thousand, seven hundred twenty-one".