23268202638 has 16 divisors (see below), whose sum is σ = 46902835200. Its totient is φ = 7694995896.

The previous prime is 23268202597. The next prime is 23268202679. The reversal of 23268202638 is 83620286232.

It is an interprime number because it is at equal distance from previous prime (23268202597) and next prime (23268202679).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 23268202638.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15267088 + ... + 15268611.

It is an arithmetic number, because the mean of its divisors is an integer number (2931427200).

Almost surely, 2^23268202638 is an apocalyptic number.

23268202638 is an abundant number, since it is smaller than the sum of its proper divisors (23634632562).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23268202638 is a wasteful number, since it uses less digits than its factorization.

23268202638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30535831.

The product of its (nonzero) digits is 331776, while the sum is 42.

The spelling of 23268202638 in words is "twenty-three billion, two hundred sixty-eight million, two hundred two thousand, six hundred thirty-eight".