8196264621 has 24 divisors (see below), whose sum is σ = 12567779640. Its totient is φ = 5129496576.

The previous prime is 8196264617. The next prime is 8196264641. The reversal of 8196264621 is 1264626918.

8196264621 is a `hidden beast` number, since 8 + 19 + 6 + 2 + 6 + 4 + 621 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 331058025 + 7865206596 = 18195^2 + 88686^2 .

It is not a de Polignac number, because 8196264621 - 2² = 8196264617 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8196264611) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9340 + ... + 128373.

It is an arithmetic number, because the mean of its divisors is an integer number (523657485).

Almost surely, 2^8196264621 is an apocalyptic number.

It is an amenable number.

8196264621 is a deficient number, since it is larger than the sum of its proper divisors (4371515019).

8196264621 is a wasteful number, since it uses less digits than its factorization.

8196264621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138125 (or 138122 counting only the distinct ones).

The product of its digits is 248832, while the sum is 45.

The square root of 8196264621 is about 90533.2238517993. The cubic root of 8196264621 is about 2016.2234294189.

The spelling of 8196264621 in words is "eight billion, one hundred ninety-six million, two hundred sixty-four thousand, six hundred twenty-one".