2699199857 has 2 divisors, whose sum is σ = 2699199858. Its totient is φ = 2699199856.

The previous prime is 2699199817. The next prime is 2699199901. The reversal of 2699199857 is 7589919962.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1809311296 + 889888561 = 42536^2 + 29831^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2699199857 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2699199793 and 2699199802.

It is not a weakly prime, because it can be changed into another prime (2699199817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1349599928 + 1349599929.

It is an arithmetic number, because the mean of its divisors is an integer number (1349599929).

Almost surely, 2^2699199857 is an apocalyptic number.

It is an amenable number.

2699199857 is a deficient number, since it is larger than the sum of its proper divisors (1).

2699199857 is an equidigital number, since it uses as much as digits as its factorization.

2699199857 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 22044960, while the sum is 65.

The square root of 2699199857 is about 51953.8242769481. The cubic root of 2699199857 is about 1392.3390833524.

The spelling of 2699199857 in words is "two billion, six hundred ninety-nine million, one hundred ninety-nine thousand, eight hundred fifty-seven".