50478642658 has 8 divisors (see below), whose sum is σ = 76784414400. Its totient is φ = 24883837860.

The previous prime is 50478642649. The next prime is 50478642661. The reversal of 50478642658 is 85624687405.

50478642658 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a junction number, because it is equal to n+sod(n) for n = 50478642599 and 50478642608.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 177741558 + ... + 177741841.

It is an arithmetic number, because the mean of its divisors is an integer number (9598051800).

Almost surely, 2^50478642658 is an apocalyptic number.

50478642658 is a deficient number, since it is larger than the sum of its proper divisors (26305771742).

50478642658 is a wasteful number, since it uses less digits than its factorization.

50478642658 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355483472.

The product of its (nonzero) digits is 12902400, while the sum is 55.

The spelling of 50478642658 in words is "fifty billion, four hundred seventy-eight million, six hundred forty-two thousand, six hundred fifty-eight".