50123342640 has 480 divisors, whose sum is σ = 192164218560. Its totient is φ = 10738925568.

The previous prime is 50123342639. The next prime is 50123342681. The reversal of 50123342640 is 4624332105.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 50123342598 and 50123342607.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 81766974 + ... + 81767586.

It is an arithmetic number, because the mean of its divisors is an integer number (400342122).

Almost surely, 2^50123342640 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 50123342640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (96082109280).

50123342640 is an abundant number, since it is smaller than the sum of its proper divisors (142040875920).

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

50123342640 is a wasteful number, since it uses less digits than its factorization.

50123342640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069 (or 1056 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 50123342640 its reverse (4624332105), we get a palindrome (54747674745).

The spelling of 50123342640 in words is "fifty billion, one hundred twenty-three million, three hundred forty-two thousand, six hundred forty".