2105017468251 has 8 divisors (see below), whose sum is σ = 2807141872704. Its totient is φ = 1403119021320.

The previous prime is 2105017468247. The next prime is 2105017468289. The reversal of 2105017468251 is 1528647105012.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2105017468251 - 2² = 2105017468247 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2105017468231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56467641 + ... + 56504906.

It is an arithmetic number, because the mean of its divisors is an integer number (350892734088).

Almost surely, 2^{2105017468251} is an apocalyptic number.

2105017468251 is a deficient number, since it is larger than the sum of its proper divisors (702124404453).

2105017468251 is a wasteful number, since it uses less digits than its factorization.

2105017468251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112978761.

The product of its (nonzero) digits is 134400, while the sum is 42.

The spelling of 2105017468251 in words is "two trillion, one hundred five billion, seventeen million, four hundred sixty-eight thousand, two hundred fifty-one".