8126272021 has 16 divisors (see below), whose sum is σ = 9355767808. Its totient is φ = 6913998000.

The previous prime is 8126272019. The next prime is 8126272031. The reversal of 8126272021 is 1202726218.

It is a happy number.

8126272021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 8126272021 - 2¹ = 8126272019 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 (8126272031) 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, 2123716 + ... + 2127538.

It is an arithmetic number, because the mean of its divisors is an integer number (584735488).

Almost surely, 2^8126272021 is an apocalyptic number.

It is an amenable number.

8126272021 is a deficient number, since it is larger than the sum of its proper divisors (1229495787).

8126272021 is a wasteful number, since it uses less digits than its factorization.

8126272021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5992.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 8126272021 is about 90145.8375134426. The cubic root of 8126272021 is about 2010.4677855658.

Adding to 8126272021 its reverse (1202726218), we get a palindrome (9328998239).

The spelling of 8126272021 in words is "eight billion, one hundred twenty-six million, two hundred seventy-two thousand, twenty-one".