50146646478 has 16 divisors (see below), whose sum is σ = 106192898640. Its totient is φ = 15732281216.

The previous prime is 50146646449. The next prime is 50146646479. The reversal of 50146646478 is 87464664105.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a self number, because there is not a number n which added to its sum of digits gives 50146646478.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50146646479) 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, 245816793 + ... + 245816996.

It is an arithmetic number, because the mean of its divisors is an integer number (6637056165).

Almost surely, 2^50146646478 is an apocalyptic number.

50146646478 is an abundant number, since it is smaller than the sum of its proper divisors (56046252162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

50146646478 is a wasteful number, since it uses less digits than its factorization.

50146646478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491633811.

The product of its (nonzero) digits is 3870720, while the sum is 51.

The spelling of 50146646478 in words is "fifty billion, one hundred forty-six million, six hundred forty-six thousand, four hundred seventy-eight".