1378908214208 has 28 divisors (see below), whose sum is σ = 3127166843952. Its totient is φ = 590960663040.

The previous prime is 1378908214193. The next prime is 1378908214319. The reversal of 1378908214208 is 8024128098731.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-2 number, since 2×1378908214208² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1378908214208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1538959613 + ... + 1538960508.

Almost surely, 2^{1378908214208} is an apocalyptic number.

It is an amenable number.

1378908214208 is an abundant number, since it is smaller than the sum of its proper divisors (1748258629744).

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

1378908214208 is an equidigital number, since it uses as much as digits as its factorization.

1378908214208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3077920140 (or 3077920130 counting only the distinct ones).

The product of its (nonzero) digits is 1548288, while the sum is 53.

The spelling of 1378908214208 in words is "one trillion, three hundred seventy-eight billion, nine hundred eight million, two hundred fourteen thousand, two hundred eight".