861225108701 has 16 divisors (see below), whose sum is σ = 888180277248. Its totient is φ = 834657423600.

The previous prime is 861225108683. The next prime is 861225108761. The reversal of 861225108701 is 107801522168.

It is a cyclic number.

It is not a de Polignac number, because 861225108701 - 2²⁶ = 861157999837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (861225108761) 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, 2699636 + ... + 3001746.

It is an arithmetic number, because the mean of its divisors is an integer number (55511267328).

Almost surely, 2^861225108701 is an apocalyptic number.

It is an amenable number.

861225108701 is a deficient number, since it is larger than the sum of its proper divisors (26955168547).

861225108701 is a wasteful number, since it uses less digits than its factorization.

861225108701 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 302752.

The product of its (nonzero) digits is 53760, while the sum is 41.

The spelling of 861225108701 in words is "eight hundred sixty-one billion, two hundred twenty-five million, one hundred eight thousand, seven hundred one".