79987377378997 has 8 divisors (see below), whose sum is σ = 87259089437280. Its totient is φ = 72715687370160.

The previous prime is 79987377378989. The next prime is 79987377379009.

79987377378997 is nontrivially palindromic in base 10.

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 79987377378997 - 2³ = 79987377378989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79987377378397) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2590579 + ... + 12910687.

It is an arithmetic number, because the mean of its divisors is an integer number (10907386179660).

Almost surely, 2^{79987377378997} is an apocalyptic number.

It is an amenable number.

79987377378997 is a deficient number, since it is larger than the sum of its proper divisors (7271712058283).

79987377378997 is a wasteful number, since it uses less digits than its factorization.

79987377378997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11024723.

The product of its digits is 444611571264, while the sum is 100.

The spelling of 79987377378997 in words is "seventy-nine trillion, nine hundred eighty-seven billion, three hundred seventy-seven million, three hundred seventy-eight thousand, nine hundred ninety-seven".