191262672108641 has 16 divisors (see below), whose sum is σ = 224220096608256. Its totient is φ = 159744525940176.

The previous prime is 191262672108551. The next prime is 191262672108713. The reversal of 191262672108641 is 146801276262191.

It is a cyclic number.

It is not a de Polignac number, because 191262672108641 - 2⁴⁶ = 120893927930977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (191262672102641) 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, 1280422031 + ... + 1280571396.

It is an arithmetic number, because the mean of its divisors is an integer number (14013756038016).

Almost surely, 2^{191262672108641} is an apocalyptic number.

It is an amenable number.

191262672108641 is a deficient number, since it is larger than the sum of its proper divisors (32957424499615).

191262672108641 is a wasteful number, since it uses less digits than its factorization.

191262672108641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2560993708.

The product of its (nonzero) digits is 3483648, while the sum is 56.

The spelling of 191262672108641 in words is "one hundred ninety-one trillion, two hundred sixty-two billion, six hundred seventy-two million, one hundred eight thousand, six hundred forty-one".