2576378409 has 16 divisors (see below), whose sum is σ = 3750239424. Its totient is φ = 1560283200.

The previous prime is 2576378369. The next prime is 2576378471. The reversal of 2576378409 is 9048736752.

It is not a de Polignac number, because 2576378409 - 2¹⁶ = 2576312873 is a prime.

It is a super-2 number, since 2×2576378409² = 13275451412722742562, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2576379409) 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 15 ways as a sum of consecutive naturals, for example, 17307 + ... + 73839.

It is an arithmetic number, because the mean of its divisors is an integer number (234389964).

Almost surely, 2^2576378409 is an apocalyptic number.

It is an amenable number.

2576378409 is a deficient number, since it is larger than the sum of its proper divisors (1173861015).

2576378409 is a wasteful number, since it uses less digits than its factorization.

2576378409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57928.

The product of its (nonzero) digits is 2540160, while the sum is 51.

The square root of 2576378409 is about 50758.0378757887. The cubic root of 2576378409 is about 1370.8919208432.

The spelling of 2576378409 in words is "two billion, five hundred seventy-six million, three hundred seventy-eight thousand, four hundred nine".