2050780465 has 8 divisors (see below), whose sum is σ = 2605697640. Its totient is φ = 1544116992.

The previous prime is 2050780451. The next prime is 2050780477. The reversal of 2050780465 is 5640870502.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 90859024 + 1959921441 = 9532^2 + 44271^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2050780465 - 2⁷ = 2050780337 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12063330 + ... + 12063499.

It is an arithmetic number, because the mean of its divisors is an integer number (325712205).

Almost surely, 2^2050780465 is an apocalyptic number.

It is an amenable number.

2050780465 is a deficient number, since it is larger than the sum of its proper divisors (554917175).

2050780465 is a wasteful number, since it uses less digits than its factorization.

2050780465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24126851.

The product of its (nonzero) digits is 67200, while the sum is 37.

The square root of 2050780465 is about 45285.5436646177. The cubic root of 2050780465 is about 1270.4952839114.

The spelling of 2050780465 in words is "two billion, fifty million, seven hundred eighty thousand, four hundred sixty-five".