1010887781899 has 2 divisors, whose sum is σ = 1010887781900. Its totient is φ = 1010887781898.

The previous prime is 1010887781867. The next prime is 1010887781909. The reversal of 1010887781899 is 9981877880101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1010887781899 - 2⁵ = 1010887781867 is a prime.

It is not a weakly prime, because it can be changed into another prime (1010887781599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505443890949 + 505443890950.

It is an arithmetic number, because the mean of its divisors is an integer number (505443890950).

Almost surely, 2^{1010887781899} is an apocalyptic number.

1010887781899 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010887781899 is an equidigital number, since it uses as much as digits as its factorization.

1010887781899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16257024, while the sum is 67.

The spelling of 1010887781899 in words is "one trillion, ten billion, eight hundred eighty-seven million, seven hundred eighty-one thousand, eight hundred ninety-nine".