50399494657 has 8 divisors (see below), whose sum is σ = 51275232000. Its totient is φ = 49524474384.

The previous prime is 50399494637. The next prime is 50399494693. The reversal of 50399494657 is 75649499305.

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 50399494657 - 2²³ = 50391106049 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 50399494595 and 50399494604.

It is not an unprimeable number, because it can be changed into a prime (50399494637) 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, 36498 + ... + 319579.

It is an arithmetic number, because the mean of its divisors is an integer number (6409404000).

Almost surely, 2^50399494657 is an apocalyptic number.

It is an amenable number.

50399494657 is a deficient number, since it is larger than the sum of its proper divisors (875737343).

50399494657 is a wasteful number, since it uses less digits than its factorization.

50399494657 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 358535.

The product of its (nonzero) digits is 36741600, while the sum is 61.

The spelling of 50399494657 in words is "fifty billion, three hundred ninety-nine million, four hundred ninety-four thousand, six hundred fifty-seven".