79783155138797 has 16 divisors (see below), whose sum is σ = 87898818729600. Its totient is φ = 71811281256000.

The previous prime is 79783155138787. The next prime is 79783155138871.

It is a happy number.

79783155138797 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 79783155138797 - 2¹⁸ = 79783154876653 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 (79783155138767) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127422704 + ... + 128047302.

It is an arithmetic number, because the mean of its divisors is an integer number (5493676170600).

Almost surely, 2^{79783155138797} is an apocalyptic number.

It is an amenable number.

79783155138797 is a deficient number, since it is larger than the sum of its proper divisors (8115663590803).

79783155138797 is a wasteful number, since it uses less digits than its factorization.

79783155138797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 739684.

The product of its digits is 2800526400, while the sum is 80.

The spelling of 79783155138797 in words is "seventy-nine trillion, seven hundred eighty-three billion, one hundred fifty-five million, one hundred thirty-eight thousand, seven hundred ninety-seven".