1427388808320 has 128 divisors (see below), whose sum is σ = 5055335424000. Its totient is φ = 380637010944.

The previous prime is 1427388808319. The next prime is 1427388808357. The reversal of 1427388808320 is 238088837241.

It is a tau number, because it is divible by the number of its divisors (128).

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41284480 + ... + 41319039.

It is an arithmetic number, because the mean of its divisors is an integer number (39494808000).

Almost surely, 2^{1427388808320} is an apocalyptic number.

1427388808320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1427388808320 is an abundant number, since it is smaller than the sum of its proper divisors (3627946615680).

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

1427388808320 is an equidigital number, since it uses as much as digits as its factorization.

1427388808320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82603547 (or 82603529 counting only the distinct ones).

The product of its (nonzero) digits is 4128768, while the sum is 54.

The spelling of 1427388808320 in words is "one trillion, four hundred twenty-seven billion, three hundred eighty-eight million, eight hundred eight thousand, three hundred twenty".