2109938369377 has 2 divisors, whose sum is σ = 2109938369378. Its totient is φ = 2109938369376.

The previous prime is 2109938369369. The next prime is 2109938369437. The reversal of 2109938369377 is 7739638399012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2109933458721 + 4910656 = 1452561^2 + 2216^2 .

It is a cyclic number.

It is not a de Polignac number, because 2109938369377 - 2³ = 2109938369369 is a prime.

It is not a weakly prime, because it can be changed into another prime (2109938309377) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1054969184688 + 1054969184689.

It is an arithmetic number, because the mean of its divisors is an integer number (1054969184689).

Almost surely, 2^{2109938369377} is an apocalyptic number.

It is an amenable number.

2109938369377 is a deficient number, since it is larger than the sum of its proper divisors (1).

2109938369377 is an equidigital number, since it uses as much as digits as its factorization.

2109938369377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 92588832, while the sum is 67.

The spelling of 2109938369377 in words is "two trillion, one hundred nine billion, nine hundred thirty-eight million, three hundred sixty-nine thousand, three hundred seventy-seven".