79268710869 has 6 divisors (see below), whose sum is σ = 114499249046. Its totient is φ = 52845807240.

The previous prime is 79268710819. The next prime is 79268710877. The reversal of 79268710869 is 96801786297.

It can be written as a sum of positive squares in only one way, i.e., 62352587025 + 16916123844 = 249705^2 + 130062^2 .

It is not a de Polignac number, because 79268710869 - 2¹⁶ = 79268645333 is a prime.

It is a super-2 number, since 2×79268710869² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79268710819) 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 5 ways as a sum of consecutive naturals, for example, 4403817262 + ... + 4403817279.

Almost surely, 2^79268710869 is an apocalyptic number.

It is an amenable number.

79268710869 is a deficient number, since it is larger than the sum of its proper divisors (35230538177).

79268710869 is a wasteful number, since it uses less digits than its factorization.

79268710869 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8807634547 (or 8807634544 counting only the distinct ones).

The product of its (nonzero) digits is 18289152, while the sum is 63.

The spelling of 79268710869 in words is "seventy-nine billion, two hundred sixty-eight million, seven hundred ten thousand, eight hundred sixty-nine".