10111895897 has 2 divisors, whose sum is σ = 10111895898. Its totient is φ = 10111895896.

The previous prime is 10111895891. The next prime is 10111895939. The reversal of 10111895897 is 79859811101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10090403401 + 21492496 = 100451^2 + 4636^2 .

It is a cyclic number.

It is not a de Polignac number, because 10111895897 - 2¹⁰ = 10111894873 is a prime.

It is not a weakly prime, because it can be changed into another prime (10111895891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055947948 + 5055947949.

It is an arithmetic number, because the mean of its divisors is an integer number (5055947949).

Almost surely, 2^10111895897 is an apocalyptic number.

It is an amenable number.

10111895897 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111895897 is an equidigital number, since it uses as much as digits as its factorization.

10111895897 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 181440, while the sum is 50.

The spelling of 10111895897 in words is "ten billion, one hundred eleven million, eight hundred ninety-five thousand, eight hundred ninety-seven".