1377326643606 has 12 divisors (see below), whose sum is σ = 2984207727852. Its totient is φ = 459108881196.

The previous prime is 1377326643587. The next prime is 1377326643643. The reversal of 1377326643606 is 6063466237731.

1377326643606 is a `hidden beast` number, since 1 + 3 + 7 + 7 + 3 + 26 + 6 + 4 + 3 + 606 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 38259073416 + ... + 38259073451.

It is an arithmetic number, because the mean of its divisors is an integer number (248683977321).

Almost surely, 2^{1377326643606} is an apocalyptic number.

1377326643606 is an abundant number, since it is smaller than the sum of its proper divisors (1606881084246).

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

1377326643606 is a wasteful number, since it uses less digits than its factorization.

1377326643606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76518146875 (or 76518146872 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 54.

The spelling of 1377326643606 in words is "one trillion, three hundred seventy-seven billion, three hundred twenty-six million, six hundred forty-three thousand, six hundred six".