1377439937808 has 160 divisors (see below), whose sum is σ = 4088040253440. Its totient is φ = 395257812480.

The previous prime is 1377439937791. The next prime is 1377439937813. The reversal of 1377439937808 is 8087399347731.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 22913166 + ... + 22973202.

It is an arithmetic number, because the mean of its divisors is an integer number (25550251584).

Almost surely, 2^{1377439937808} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1377439937808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2044020126720).

1377439937808 is an abundant number, since it is smaller than the sum of its proper divisors (2710600315632).

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

1377439937808 is a wasteful number, since it uses less digits than its factorization.

1377439937808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62365 (or 62359 counting only the distinct ones).

The product of its (nonzero) digits is 192036096, while the sum is 69.

The spelling of 1377439937808 in words is "one trillion, three hundred seventy-seven billion, four hundred thirty-nine million, nine hundred thirty-seven thousand, eight hundred eight".