8121726102 has 32 divisors (see below), whose sum is σ = 18568956672. Its totient is φ = 2319866784.

The previous prime is 8121726091. The next prime is 8121726103. The reversal of 8121726102 is 2016271218.

It is a super-2 number, since 2×8121726102² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 8121726102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8121726103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144453 + ... + 192639.

It is an arithmetic number, because the mean of its divisors is an integer number (580279896).

Almost surely, 2^8121726102 is an apocalyptic number.

8121726102 is an abundant number, since it is smaller than the sum of its proper divisors (10447230570).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

8121726102 is a wasteful number, since it uses less digits than its factorization.

8121726102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52212.

The product of its (nonzero) digits is 2688, while the sum is 30.

The square root of 8121726102 is about 90120.6197382153. The cubic root of 8121726102 is about 2010.0928236136.

The spelling of 8121726102 in words is "eight billion, one hundred twenty-one million, seven hundred twenty-six thousand, one hundred two".