2540770817 has 8 divisors (see below), whose sum is σ = 2736851880. Its totient is φ = 2344780800.

The previous prime is 2540770811. The next prime is 2540770829. The reversal of 2540770817 is 7180770452.

It can be written as a sum of positive squares in 4 ways, for example, as 48664576 + 2492106241 = 6976^2 + 49921^2 .

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 2540770817 - 2⁶ = 2540770753 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2540770811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42059 + ... + 82767.

It is an arithmetic number, because the mean of its divisors is an integer number (342106485).

Almost surely, 2^2540770817 is an apocalyptic number.

It is an amenable number.

2540770817 is a deficient number, since it is larger than the sum of its proper divisors (196081063).

2540770817 is a wasteful number, since it uses less digits than its factorization.

2540770817 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45523.

The product of its (nonzero) digits is 109760, while the sum is 41.

The square root of 2540770817 is about 50406.0593282197. The cubic root of 2540770817 is about 1364.5469954416.

The spelling of 2540770817 in words is "two billion, five hundred forty million, seven hundred seventy thousand, eight hundred seventeen".