104957718991 has 4 divisors (see below), whose sum is σ = 105428381632. Its totient is φ = 104487056352.

The previous prime is 104957718989. The next prime is 104957719019. The reversal of 104957718991 is 199817759401.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 104957718991 - 2¹ = 104957718989 is a prime.

It is a super-2 number, since 2×104957718991² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (104957728991) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 235330986 + ... + 235331431.

It is an arithmetic number, because the mean of its divisors is an integer number (26357095408).

Almost surely, 2^104957718991 is an apocalyptic number.

104957718991 is a deficient number, since it is larger than the sum of its proper divisors (470662641).

104957718991 is an equidigital number, since it uses as much as digits as its factorization.

104957718991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470662640.

The product of its (nonzero) digits is 5715360, while the sum is 61.

The spelling of 104957718991 in words is "one hundred four billion, nine hundred fifty-seven million, seven hundred eighteen thousand, nine hundred ninety-one".