50420764540 has 48 divisors (see below), whose sum is σ = 108311787360. Its totient is φ = 19708832000.

The previous prime is 50420764469. The next prime is 50420764549. The reversal of 50420764540 is 4546702405.

It is a self number, because there is not a number n which added to its sum of digits gives 50420764540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50420764549) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 171306 + ... + 360814.

It is an arithmetic number, because the mean of its divisors is an integer number (2256495570).

Almost surely, 2^50420764540 is an apocalyptic number.

It is an amenable number.

50420764540 is an abundant number, since it is smaller than the sum of its proper divisors (57891022820).

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

50420764540 is a wasteful number, since it uses less digits than its factorization.

50420764540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189822 (or 189820 counting only the distinct ones).

The product of its (nonzero) digits is 134400, while the sum is 37.

The spelling of 50420764540 in words is "fifty billion, four hundred twenty million, seven hundred sixty-four thousand, five hundred forty".