8120426473 has 16 divisors (see below), whose sum is σ = 8717745600. Its totient is φ = 7540853760.

The previous prime is 8120426443. The next prime is 8120426491. The reversal of 8120426473 is 3746240218.

It is not a de Polignac number, because 8120426473 - 2⁵ = 8120426441 is a prime.

It is a super-2 number, since 2×8120426473² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8120426423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 385453 + ... + 405973.

It is an arithmetic number, because the mean of its divisors is an integer number (544859100).

Almost surely, 2^8120426473 is an apocalyptic number.

It is an amenable number.

8120426473 is a deficient number, since it is larger than the sum of its proper divisors (597319127).

8120426473 is a wasteful number, since it uses less digits than its factorization.

8120426473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20952.

The product of its (nonzero) digits is 64512, while the sum is 37.

The square root of 8120426473 is about 90113.4089522752. The cubic root of 8120426473 is about 2009.9856003358.

The spelling of 8120426473 in words is "eight billion, one hundred twenty million, four hundred twenty-six thousand, four hundred seventy-three".