50161961472 has 320 divisors, whose sum is σ = 165177999360. Its totient is φ = 13199671296.

The previous prime is 50161961471. The next prime is 50161961491. The reversal of 50161961472 is 27416916105.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (50161961471) 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, 8587929 + ... + 8593767.

It is an arithmetic number, because the mean of its divisors is an integer number (516181248).

Almost surely, 2^50161961472 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 50161961472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (82588999680).

50161961472 is an abundant number, since it is smaller than the sum of its proper divisors (115016037888).

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

50161961472 is a wasteful number, since it uses less digits than its factorization.

50161961472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5931 (or 5915 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 42.

The spelling of 50161961472 in words is "fifty billion, one hundred sixty-one million, nine hundred sixty-one thousand, four hundred seventy-two".