1338827651268 has 24 divisors (see below), whose sum is σ = 3124658309472. Its totient is φ = 446172009024.

The previous prime is 1338827651267. The next prime is 1338827651269. The reversal of 1338827651268 is 8621567288331.

It is an interprime number because it is at equal distance from previous prime (1338827651267) and next prime (1338827651269).

It is not an unprimeable number, because it can be changed into a prime (1338827651267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12930630 + ... + 13033757.

It is an arithmetic number, because the mean of its divisors is an integer number (130194096228).

Almost surely, 2^{1338827651268} is an apocalyptic number.

It is an amenable number.

1338827651268 is an abundant number, since it is smaller than the sum of its proper divisors (1785830658204).

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

1338827651268 is a wasteful number, since it uses less digits than its factorization.

1338827651268 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25968691 (or 25968689 counting only the distinct ones).

The product of its digits is 23224320, while the sum is 60.

The spelling of 1338827651268 in words is "one trillion, three hundred thirty-eight billion, eight hundred twenty-seven million, six hundred fifty-one thousand, two hundred sixty-eight".