1377380387664 has 60 divisors (see below), whose sum is σ = 3997520663136. Its totient is φ = 459126794592.

The previous prime is 1377380387629. The next prime is 1377380387671. The reversal of 1377380387664 is 4667830837731.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 177128364 + ... + 177136139.

Almost surely, 2^{1377380387664} is an apocalyptic number.

It is an amenable number.

1377380387664 is an abundant number, since it is smaller than the sum of its proper divisors (2620140275472).

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

1377380387664 is an equidigital number, since it uses as much as digits as its factorization.

1377380387664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354264526 (or 354264508 counting only the distinct ones).

The product of its (nonzero) digits is 85349376, while the sum is 63.

The spelling of 1377380387664 in words is "one trillion, three hundred seventy-seven billion, three hundred eighty million, three hundred eighty-seven thousand, six hundred sixty-four".