2545964378 has 8 divisors (see below), whose sum is σ = 3819901440. Its totient is φ = 1272663900.

The previous prime is 2545964359. The next prime is 2545964383. The reversal of 2545964378 is 8734695452.

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

It is a super-2 number, since 2×2545964378² = 12963869228089853768, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149018 + ... + 165221.

It is an arithmetic number, because the mean of its divisors is an integer number (477487680).

Almost surely, 2^2545964378 is an apocalyptic number.

2545964378 is a deficient number, since it is larger than the sum of its proper divisors (1273937062).

2545964378 is a wasteful number, since it uses less digits than its factorization.

2545964378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318292.

The product of its digits is 7257600, while the sum is 53.

The square root of 2545964378 is about 50457.5502576175. The cubic root of 2545964378 is about 1365.4761143747.

The spelling of 2545964378 in words is "two billion, five hundred forty-five million, nine hundred sixty-four thousand, three hundred seventy-eight".