8079640261 has 32 divisors (see below), whose sum is σ = 10530164736. Its totient is φ = 6011280000.

The previous prime is 8079640223. The next prime is 8079640367. The reversal of 8079640261 is 1620469708.

It is not a de Polignac number, because 8079640261 - 2¹³ = 8079632069 is a prime.

It is a Smith number, since the sum of its digits (43) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8079646261) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1060576 + ... + 1068166.

It is an arithmetic number, because the mean of its divisors is an integer number (329067648).

Almost surely, 2^8079640261 is an apocalyptic number.

It is an amenable number.

8079640261 is a deficient number, since it is larger than the sum of its proper divisors (2450524475).

8079640261 is a wasteful number, since it uses less digits than its factorization.

8079640261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8233.

The product of its (nonzero) digits is 145152, while the sum is 43.

The square root of 8079640261 is about 89886.8191727797. The cubic root of 8079640261 is about 2006.6147865964.

The spelling of 8079640261 in words is "eight billion, seventy-nine million, six hundred forty thousand, two hundred sixty-one".