50038571664 has 280 divisors, whose sum is σ = 154534941720. Its totient is φ = 15634612224.

The previous prime is 50038571621. The next prime is 50038571677. The reversal of 50038571664 is 46617583005.

50038571664 is a `hidden beast` number, since 500 + 3 + 85 + 7 + 1 + 6 + 64 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10548933264 + 39489638400 = 102708^2 + 198720^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 81099484 + ... + 81100100.

Almost surely, 2^50038571664 is an apocalyptic number.

50038571664 is a gapful number since it is divisible by the number (54) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 50038571664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (77267470860).

50038571664 is an abundant number, since it is smaller than the sum of its proper divisors (104496370056).

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

50038571664 is a wasteful number, since it uses less digits than its factorization.

50038571664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1069 (or 1048 counting only the distinct ones).

The product of its (nonzero) digits is 604800, while the sum is 45.

The spelling of 50038571664 in words is "fifty billion, thirty-eight million, five hundred seventy-one thousand, six hundred sixty-four".