2638266470323 has 32 divisors (see below), whose sum is σ = 3036011616000. Its totient is φ = 2267379112320.

The previous prime is 2638266470263. The next prime is 2638266470339. The reversal of 2638266470323 is 3230746628362.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2638266470323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2638266470353) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 203265448 + ... + 203278426.

It is an arithmetic number, because the mean of its divisors is an integer number (94875363000).

Almost surely, 2^{2638266470323} is an apocalyptic number.

2638266470323 is a deficient number, since it is larger than the sum of its proper divisors (397745145677).

2638266470323 is a wasteful number, since it uses less digits than its factorization.

2638266470323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14995.

The product of its (nonzero) digits is 10450944, while the sum is 52.

The spelling of 2638266470323 in words is "two trillion, six hundred thirty-eight billion, two hundred sixty-six million, four hundred seventy thousand, three hundred twenty-three".