64128050 has 48 divisors (see below), whose sum is σ = 139520832. Its totient is φ = 21470400.

The previous prime is 64128049. The next prime is 64128073. The reversal of 64128050 is 5082146.

It is a super-2 number, since 2×64128050² = 8224813593605000, which contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 12920 + ... + 17180.

It is an arithmetic number, because the mean of its divisors is an integer number (2906684).

Almost surely, 2^64128050 is an apocalyptic number.

64128050 is an abundant number, since it is smaller than the sum of its proper divisors (75392782).

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

64128050 is a wasteful number, since it uses less digits than its factorization.

64128050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4323 (or 4318 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 26.

The square root of 64128050 is about 8007.9991258741. Note that the first 3 decimals coincide. The cubic root of 64128050 is about 400.2665931141.

The spelling of 64128050 in words is "sixty-four million, one hundred twenty-eight thousand, fifty".