109872663046691 has 2 divisors, whose sum is σ = 109872663046692. Its totient is φ = 109872663046690.

The previous prime is 109872663046639. The next prime is 109872663046693. The reversal of 109872663046691 is 196640366278901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109872663046691 - 2¹⁴ = 109872663030307 is a prime.

Together with 109872663046693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (109872663046693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54936331523345 + 54936331523346.

It is an arithmetic number, because the mean of its divisors is an integer number (54936331523346).

Almost surely, 2^{109872663046691} is an apocalyptic number.

109872663046691 is a deficient number, since it is larger than the sum of its proper divisors (1).

109872663046691 is an equidigital number, since it uses as much as digits as its factorization.

109872663046691 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 141087744, while the sum is 68.

The spelling of 109872663046691 in words is "one hundred nine trillion, eight hundred seventy-two billion, six hundred sixty-three million, forty-six thousand, six hundred ninety-one".