2638180345 has 8 divisors (see below), whose sum is σ = 3175997760. Its totient is φ = 2103756720.

The previous prime is 2638180289. The next prime is 2638180351. The reversal of 2638180345 is 5430818362.

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

It is a de Polignac number, because none of the positive numbers 2^k-2638180345 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2638180298 and 2638180307.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846735 + ... + 849844.

It is an arithmetic number, because the mean of its divisors is an integer number (396999720).

Almost surely, 2^2638180345 is an apocalyptic number.

It is an amenable number.

2638180345 is a deficient number, since it is larger than the sum of its proper divisors (537817415).

2638180345 is a wasteful number, since it uses less digits than its factorization.

2638180345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1696895.

The product of its (nonzero) digits is 138240, while the sum is 40.

The square root of 2638180345 is about 51363.2197686243. The cubic root of 2638180345 is about 1381.7670329629.

The spelling of 2638180345 in words is "two billion, six hundred thirty-eight million, one hundred eighty thousand, three hundred forty-five".