50431144400 has 120 divisors (see below), whose sum is σ = 149121122304. Its totient is φ = 15960614400.

The previous prime is 50431144399. The next prime is 50431144403. The reversal of 50431144400 is 444113405.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 50431144400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50431144403) 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, 656336 + ... + 729135.

Almost surely, 2^50431144400 is an apocalyptic number.

50431144400 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

50431144400 is an abundant number, since it is smaller than the sum of its proper divisors (98689977904).

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

50431144400 is a wasteful number, since it uses less digits than its factorization.

50431144400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1385509 (or 1385498 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 50431144400 its reverse (444113405), we get a palindrome (50875257805).

The spelling of 50431144400 in words is "fifty billion, four hundred thirty-one million, one hundred forty-four thousand, four hundred".