50389647440 has 40 divisors (see below), whose sum is σ = 127806471648. Its totient is φ = 18323507840.

The previous prime is 50389647437. The next prime is 50389647443. The reversal of 50389647440 is 4474698305.

It is an interprime number because it is at equal distance from previous prime (50389647437) and next prime (50389647443).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50389647443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28629602 + ... + 28631361.

Almost surely, 2^50389647440 is an apocalyptic number.

It is an amenable number.

50389647440 is an abundant number, since it is smaller than the sum of its proper divisors (77416824208).

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

50389647440 is a wasteful number, since it uses less digits than its factorization.

50389647440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57260987 (or 57260981 counting only the distinct ones).

The product of its (nonzero) digits is 2903040, while the sum is 50.

The spelling of 50389647440 in words is "fifty billion, three hundred eighty-nine million, six hundred forty-seven thousand, four hundred forty".