1378380337856 has 14 divisors (see below), whose sum is σ = 2735223483060. Its totient is φ = 689190168896.

The previous prime is 1378380337847. The next prime is 1378380337913. The reversal of 1378380337856 is 6587330838731.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10768596326 + ... + 10768596453.

Almost surely, 2^{1378380337856} is an apocalyptic number.

1378380337856 is a gapful number since it is divisible by the number (16) formed by its first and last digit.

It is an amenable number.

1378380337856 is a deficient number, since it is larger than the sum of its proper divisors (1356843145204).

1378380337856 is an equidigital number, since it uses as much as digits as its factorization.

1378380337856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21537192791 (or 21537192781 counting only the distinct ones).

The product of its (nonzero) digits is 60963840, while the sum is 62.

The spelling of 1378380337856 in words is "one trillion, three hundred seventy-eight billion, three hundred eighty million, three hundred thirty-seven thousand, eight hundred fifty-six".