50961649824 has 192 divisors, whose sum is σ = 156893184000. Its totient is φ = 16048730880.

The previous prime is 50961649789. The next prime is 50961649831. The reversal of 50961649824 is 42894616905.

50961649824 is a `hidden beast` number, since 50 + 96 + 16 + 498 + 2 + 4 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6217569 + ... + 6225759.

It is an arithmetic number, because the mean of its divisors is an integer number (817152000).

Almost surely, 2^50961649824 is an apocalyptic number.

50961649824 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50961649824, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (78446592000).

50961649824 is an abundant number, since it is smaller than the sum of its proper divisors (105931534176).

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

50961649824 is a wasteful number, since it uses less digits than its factorization.

50961649824 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8608 (or 8594 counting only the distinct ones).

The product of its (nonzero) digits is 3732480, while the sum is 54.

The spelling of 50961649824 in words is "fifty billion, nine hundred sixty-one million, six hundred forty-nine thousand, eight hundred twenty-four".