50143640418 has 48 divisors (see below), whose sum is σ = 110410556256. Its totient is φ = 16444529280.

The previous prime is 50143640413. The next prime is 50143640431. The reversal of 50143640418 is 81404634105.

50143640418 is a `hidden beast` number, since 5 + 0 + 1 + 4 + 3 + 640 + 4 + 1 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (50143640413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 290421 + ... + 429687.

It is an arithmetic number, because the mean of its divisors is an integer number (2300219922).

Almost surely, 2^50143640418 is an apocalyptic number.

50143640418 is an abundant number, since it is smaller than the sum of its proper divisors (60266915838).

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

50143640418 is a wasteful number, since it uses less digits than its factorization.

50143640418 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139599 (or 139596 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 36.

It can be divided in two parts, 50143 and 640418, that added together give a square (690561 = 831²).

The spelling of 50143640418 in words is "fifty billion, one hundred forty-three million, six hundred forty thousand, four hundred eighteen".