50438977020 has 120 divisors (see below), whose sum is σ = 158637679200. Its totient is φ = 13415649408.

The previous prime is 50438976989. The next prime is 50438977021. The reversal of 50438977020 is 2077983405.

50438977020 is a `hidden beast` number, since 504 + 38 + 97 + 7 + 0 + 20 = 666.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (50438977021) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 590161 + ... + 670199.

It is an arithmetic number, because the mean of its divisors is an integer number (1321980660).

Almost surely, 2^50438977020 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 50438977020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (79318839600).

50438977020 is an abundant number, since it is smaller than the sum of its proper divisors (108198702180).

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

50438977020 is a wasteful number, since it uses less digits than its factorization.

50438977020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80449 (or 80438 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 45.

The spelling of 50438977020 in words is "fifty billion, four hundred thirty-eight million, nine hundred seventy-seven thousand, twenty".