8021426102405 has 16 divisors (see below), whose sum is σ = 9886332113280. Its totient is φ = 6243410054592.

The previous prime is 8021426102383. The next prime is 8021426102411. The reversal of 8021426102405 is 5042016241208.

It is a cyclic number.

It is not a de Polignac number, because 8021426102405 - 2⁸ = 8021426102149 is a prime.

It is a congruent number.

It is an unprimeable number.

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, 2950352 + ... + 4974678.

It is an arithmetic number, because the mean of its divisors is an integer number (617895757080).

Almost surely, 2^{8021426102405} is an apocalyptic number.

It is an amenable number.

8021426102405 is a deficient number, since it is larger than the sum of its proper divisors (1864906010875).

8021426102405 is a wasteful number, since it uses less digits than its factorization.

8021426102405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2045788.

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 8021426102405 in words is "eight trillion, twenty-one billion, four hundred twenty-six million, one hundred two thousand, four hundred five".