1377443141440 has 112 divisors (see below), whose sum is σ = 3397030290000. Its totient is φ = 531368312832.

The previous prime is 1377443141377. The next prime is 1377443141441. The reversal of 1377443141440 is 441413447731.

It can be written as a sum of positive squares in 8 ways, for example, as 185974837504 + 1191468303936 = 431248^2 + 1091544^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1377443141441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8053936 + ... + 8223184.

Almost surely, 2^{1377443141440} is an apocalyptic number.

1377443141440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1377443141440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1698515145000).

1377443141440 is an abundant number, since it is smaller than the sum of its proper divisors (2019587148560).

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

1377443141440 is a wasteful number, since it uses less digits than its factorization.

1377443141440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170172 (or 170162 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 43.

The spelling of 1377443141440 in words is "one trillion, three hundred seventy-seven billion, four hundred forty-three million, one hundred forty-one thousand, four hundred forty".