8122669645 has 8 divisors (see below), whose sum is σ = 9836628120. Its totient is φ = 6438519360.

The previous prime is 8122669561. The next prime is 8122669661. The reversal of 8122669645 is 5469662218.

It can be written as a sum of positive squares in 4 ways, for example, as 4075928649 + 4046740996 = 63843^2 + 63614^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8122669645 - 2¹⁵ = 8122636877 is a prime.

It is a super-3 number, since 3×8122669645³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7451446 + ... + 7452535.

It is an arithmetic number, because the mean of its divisors is an integer number (1229578515).

Almost surely, 2^8122669645 is an apocalyptic number.

It is an amenable number.

8122669645 is a deficient number, since it is larger than the sum of its proper divisors (1713958475).

8122669645 is a wasteful number, since it uses less digits than its factorization.

8122669645 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14904095.

The product of its digits is 1244160, while the sum is 49.

The square root of 8122669645 is about 90125.8544758384. The cubic root of 8122669645 is about 2010.1706615652.

The spelling of 8122669645 in words is "eight billion, one hundred twenty-two million, six hundred sixty-nine thousand, six hundred forty-five".