338023698649 has 64 divisors (see below), whose sum is σ = 438727475200. Its totient is φ = 253272096000.

The previous prime is 338023698641. The next prime is 338023698659. The reversal of 338023698649 is 946896320833.

It is a happy number.

It is not a de Polignac number, because 338023698649 - 2³ = 338023698641 is a prime.

It is a super-2 number, since 2×338023698649² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is not an unprimeable number, because it can be changed into a prime (338023698641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34239184 + ... + 34249054.

It is an arithmetic number, because the mean of its divisors is an integer number (6855116800).

Almost surely, 2^338023698649 is an apocalyptic number.

It is an amenable number.

338023698649 is a deficient number, since it is larger than the sum of its proper divisors (100703776551).

338023698649 is a wasteful number, since it uses less digits than its factorization.

338023698649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10182.

The product of its (nonzero) digits is 40310784, while the sum is 61.

The spelling of 338023698649 in words is "three hundred thirty-eight billion, twenty-three million, six hundred ninety-eight thousand, six hundred forty-nine".