338728645263 has 16 divisors (see below), whose sum is σ = 456653836800. Its totient is φ = 223316608800.

The previous prime is 338728645253. The next prime is 338728645267. The reversal of 338728645263 is 362546827833.

It is not a de Polignac number, because 338728645263 - 2¹⁴ = 338728628879 is a prime.

It is a super-2 number, since 2×338728645263² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338728645267) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 412003 + ... + 920436.

It is an arithmetic number, because the mean of its divisors is an integer number (28540864800).

Almost surely, 2^338728645263 is an apocalyptic number.

338728645263 is a deficient number, since it is larger than the sum of its proper divisors (117925191537).

338728645263 is a wasteful number, since it uses less digits than its factorization.

338728645263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1333382.

The product of its digits is 34836480, while the sum is 57.

The spelling of 338728645263 in words is "three hundred thirty-eight billion, seven hundred twenty-eight million, six hundred forty-five thousand, two hundred sixty-three".