11099738857 has 2 divisors, whose sum is σ = 11099738858. Its totient is φ = 11099738856.

The previous prime is 11099738851. The next prime is 11099738869. The reversal of 11099738857 is 75883799011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9733992921 + 1365745936 = 98661^2 + 36956^2 .

It is a cyclic number.

It is not a de Polignac number, because 11099738857 - 2¹⁹ = 11099214569 is a prime.

It is not a weakly prime, because it can be changed into another prime (11099738851) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5549869428 + 5549869429.

It is an arithmetic number, because the mean of its divisors is an integer number (5549869429).

Almost surely, 2^11099738857 is an apocalyptic number.

It is an amenable number.

11099738857 is a deficient number, since it is larger than the sum of its proper divisors (1).

11099738857 is an equidigital number, since it uses as much as digits as its factorization.

11099738857 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3810240, while the sum is 58.

It can be divided in two parts, 11099 and 738857, that added together give a square (749956 = 866²).

The spelling of 11099738857 in words is "eleven billion, ninety-nine million, seven hundred thirty-eight thousand, eight hundred fifty-seven".