79581257744385 has 8 divisors (see below), whose sum is σ = 127330012391040. Its totient is φ = 42443337463664.

The previous prime is 79581257744369. The next prime is 79581257744413. The reversal of 79581257744385 is 58344775218597.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 79581257744385 - 2⁴ = 79581257744369 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2652708591465 + ... + 2652708591494.

It is an arithmetic number, because the mean of its divisors is an integer number (15916251548880).

Almost surely, 2^{79581257744385} is an apocalyptic number.

It is an amenable number.

79581257744385 is a deficient number, since it is larger than the sum of its proper divisors (47748754646655).

79581257744385 is a wasteful number, since it uses less digits than its factorization.

79581257744385 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5305417182967.

The product of its digits is 2370816000, while the sum is 75.

The spelling of 79581257744385 in words is "seventy-nine trillion, five hundred eighty-one billion, two hundred fifty-seven million, seven hundred forty-four thousand, three hundred eighty-five".