8104938261 has 32 divisors (see below), whose sum is σ = 12686032128. Its totient is φ = 4506140160.

The previous prime is 8104938253. The next prime is 8104938269. The reversal of 8104938261 is 1628394018.

It is an interprime number because it is at equal distance from previous prime (8104938253) and next prime (8104938269).

It is not a de Polignac number, because 8104938261 - 2³ = 8104938253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8104938269) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 308535 + ... + 333771.

It is an arithmetic number, because the mean of its divisors is an integer number (396438504).

Almost surely, 2^8104938261 is an apocalyptic number.

It is an amenable number.

8104938261 is a deficient number, since it is larger than the sum of its proper divisors (4581093867).

8104938261 is a wasteful number, since it uses less digits than its factorization.

8104938261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25661.

The product of its (nonzero) digits is 82944, while the sum is 42.

The square root of 8104938261 is about 90027.4306031223. The cubic root of 8104938261 is about 2008.7068950667.

The spelling of 8104938261 in words is "eight billion, one hundred four million, nine hundred thirty-eight thousand, two hundred sixty-one".