50614578648 has 128 divisors (see below), whose sum is σ = 148151520000. Its totient is φ = 15966740736.

The previous prime is 50614578593. The next prime is 50614578649. The reversal of 50614578648 is 84687541605.

50614578648 is a `hidden beast` number, since 5 + 0 + 6 + 1 + 4 + 578 + 64 + 8 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a junction number, because it is equal to n+sod(n) for n = 50614578594 and 50614578603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50614578649) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4233463 + ... + 4245401.

It is an arithmetic number, because the mean of its divisors is an integer number (1157433750).

Almost surely, 2^50614578648 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50614578648, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (74075760000).

50614578648 is an abundant number, since it is smaller than the sum of its proper divisors (97536941352).

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

50614578648 is a wasteful number, since it uses less digits than its factorization.

50614578648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13006 (or 12996 counting only the distinct ones).

The product of its (nonzero) digits is 6451200, while the sum is 54.

The spelling of 50614578648 in words is "fifty billion, six hundred fourteen million, five hundred seventy-eight thousand, six hundred forty-eight".