1328208743904 has 144 divisors (see below), whose sum is σ = 4294355840208. Its totient is φ = 357165355008.

The previous prime is 1328208743893. The next prime is 1328208743941. The reversal of 1328208743904 is 4093478028231.

It is a super-2 number, since 2×1328208743904² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8224659 + ... + 8384594.

It is an arithmetic number, because the mean of its divisors is an integer number (29821915557).

Almost surely, 2^{1328208743904} is an apocalyptic number.

1328208743904 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1328208743904 is an abundant number, since it is smaller than the sum of its proper divisors (2966147096304).

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

1328208743904 is a wasteful number, since it uses less digits than its factorization.

1328208743904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16609297 (or 16609282 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 1328208743904 in words is "one trillion, three hundred twenty-eight billion, two hundred eight million, seven hundred forty-three thousand, nine hundred four".