79730980281 has 24 divisors (see below), whose sum is σ = 115353333576. Its totient is φ = 53068055040.

The previous prime is 79730980213. The next prime is 79730980291. The reversal of 79730980281 is 18208903797.

It can be written as a sum of positive squares in 4 ways, for example, as 33111261225 + 46619719056 = 181965^2 + 215916^2 .

It is not a de Polignac number, because 79730980281 - 2¹³ = 79730972089 is a prime.

It is a super-3 number, since 3×79730980281³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (79730980291) 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 23 ways as a sum of consecutive naturals, for example, 27866791 + ... + 27869651.

It is an arithmetic number, because the mean of its divisors is an integer number (4806388899).

Almost surely, 2^79730980281 is an apocalyptic number.

It is an amenable number.

79730980281 is a deficient number, since it is larger than the sum of its proper divisors (35622353295).

79730980281 is a wasteful number, since it uses less digits than its factorization.

79730980281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6793 (or 6790 counting only the distinct ones).

The product of its (nonzero) digits is 1524096, while the sum is 54.

The spelling of 79730980281 in words is "seventy-nine billion, seven hundred thirty million, nine hundred eighty thousand, two hundred eighty-one".