107981297873891 has 16 divisors (see below), whose sum is σ = 123783319245600. Its totient is φ = 93367989335808.

The previous prime is 107981297873863. The next prime is 107981297873923. The reversal of 107981297873891 is 198378792189701.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-107981297873891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (107981297873861) 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, 2455996256 + ... + 2456040221.

It is an arithmetic number, because the mean of its divisors is an integer number (7736457452850).

Almost surely, 2^{107981297873891} is an apocalyptic number.

107981297873891 is a deficient number, since it is larger than the sum of its proper divisors (15802021371709).

107981297873891 is a wasteful number, since it uses less digits than its factorization.

107981297873891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4912036598.

The product of its (nonzero) digits is 768144384, while the sum is 80.

The spelling of 107981297873891 in words is "one hundred seven trillion, nine hundred eighty-one billion, two hundred ninety-seven million, eight hundred seventy-three thousand, eight hundred ninety-one".