50431493639520 has 768 divisors, whose sum is σ = 207528261857280. Its totient is φ = 11199864619008.

The previous prime is 50431493639489. The next prime is 50431493639521. The reversal of 50431493639520 is 2593639413405.

50431493639520 is a `hidden beast` number, since 5 + 0 + 4 + 3 + 1 + 493 + 63 + 95 + 2 + 0 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50431493639521) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 164927412 + ... + 165232908.

It is an arithmetic number, because the mean of its divisors is an integer number (270219090960).

Almost surely, 2^{50431493639520} 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 50431493639520, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (103764130928640).

50431493639520 is an abundant number, since it is smaller than the sum of its proper divisors (157096768217760).

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

50431493639520 is a wasteful number, since it uses less digits than its factorization.

50431493639520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305684 (or 305670 counting only the distinct ones).

The product of its (nonzero) digits is 10497600, while the sum is 54.

The spelling of 50431493639520 in words is "fifty trillion, four hundred thirty-one billion, four hundred ninety-three million, six hundred thirty-nine thousand, five hundred twenty".