50990143680 has 224 divisors, whose sum is σ = 205579553280. Its totient is φ = 11654876160.

The previous prime is 50990143663. The next prime is 50990143709. The reversal of 50990143680 is 8634109905.

It is a happy number.

50990143680 is a `hidden beast` number, since 50 + 9 + 90 + 1 + 436 + 80 = 666.

It is a tau number, because it is divible by the number of its divisors (224).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 361066 + ... + 482025.

Almost surely, 2^50990143680 is an apocalyptic number.

It is an amenable number.

50990143680 is an abundant number, since it is smaller than the sum of its proper divisors (154589409600).

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

50990143680 is a wasteful number, since it uses less digits than its factorization.

50990143680 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 843124 (or 843108 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The spelling of 50990143680 in words is "fifty billion, nine hundred ninety million, one hundred forty-three thousand, six hundred eighty".