8192777397 has 16 divisors (see below), whose sum is σ = 12642263040. Its totient is φ = 4622325552.

The previous prime is 8192777393. The next prime is 8192777423. The reversal of 8192777397 is 7937772918.

It is not a de Polignac number, because 8192777397 - 2² = 8192777393 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 8192777397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8192777393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2467533 + ... + 2470850.

It is an arithmetic number, because the mean of its divisors is an integer number (790141440).

Almost surely, 2^8192777397 is an apocalyptic number.

It is an amenable number.

8192777397 is a deficient number, since it is larger than the sum of its proper divisors (4449485643).

8192777397 is a wasteful number, since it uses less digits than its factorization.

8192777397 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4938472.

The product of its digits is 9335088, while the sum is 60.

The square root of 8192777397 is about 90513.9624422663. The cubic root of 8192777397 is about 2015.9374446667.

The spelling of 8192777397 in words is "eight billion, one hundred ninety-two million, seven hundred seventy-seven thousand, three hundred ninety-seven".