2801780245 has 8 divisors (see below), whose sum is σ = 3667785120. Its totient is φ = 2037658320.

The previous prime is 2801780243. The next prime is 2801780249. The reversal of 2801780245 is 5420871082.

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

It is not a de Polignac number, because 2801780245 - 2¹ = 2801780243 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2801780243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25470675 + ... + 25470784.

It is an arithmetic number, because the mean of its divisors is an integer number (458473140).

Almost surely, 2^2801780245 is an apocalyptic number.

It is an amenable number.

2801780245 is a deficient number, since it is larger than the sum of its proper divisors (866004875).

2801780245 is a wasteful number, since it uses less digits than its factorization.

2801780245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50941475.

The product of its (nonzero) digits is 35840, while the sum is 37.

The square root of 2801780245 is about 52931.8452824007. The cubic root of 2801780245 is about 1409.7583954693.

The spelling of 2801780245 in words is "two billion, eight hundred one million, seven hundred eighty thousand, two hundred forty-five".