2050128745 has 32 divisors (see below), whose sum is σ = 2892192768. Its totient is φ = 1365631488.

The previous prime is 2050128739. The next prime is 2050128757. The reversal of 2050128745 is 5478210502.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 2050128745 - 2³ = 2050128737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2050128745.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1544272 + ... + 1545598.

It is an arithmetic number, because the mean of its divisors is an integer number (90381024).

Almost surely, 2^2050128745 is an apocalyptic number.

It is an amenable number.

2050128745 is a deficient number, since it is larger than the sum of its proper divisors (842064023).

2050128745 is a wasteful number, since it uses less digits than its factorization.

2050128745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2569.

The product of its (nonzero) digits is 22400, while the sum is 34.

The square root of 2050128745 is about 45278.3474190479. The cubic root of 2050128745 is about 1270.3606855756.

The spelling of 2050128745 in words is "two billion, fifty million, one hundred twenty-eight thousand, seven hundred forty-five".