106817779297 has 4 divisors (see below), whose sum is σ = 107498147476. Its totient is φ = 106137411120.

The previous prime is 106817779283. The next prime is 106817779301. The reversal of 106817779297 is 792977718601.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54457356321 + 52360422976 = 233361^2 + 228824^2 .

It is a cyclic number.

It is not a de Polignac number, because 106817779297 - 2⁷ = 106817779169 is a prime.

It is a super-2 number, since 2×106817779297² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106817779247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340183854 + ... + 340184167.

It is an arithmetic number, because the mean of its divisors is an integer number (26874536869).

Almost surely, 2^106817779297 is an apocalyptic number.

It is an amenable number.

106817779297 is a deficient number, since it is larger than the sum of its proper divisors (680368179).

106817779297 is an equidigital number, since it uses as much as digits as its factorization.

106817779297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680368178.

The product of its (nonzero) digits is 18670176, while the sum is 64.

The spelling of 106817779297 in words is "one hundred six billion, eight hundred seventeen million, seven hundred seventy-nine thousand, two hundred ninety-seven".