1000090909957 has 2 divisors, whose sum is σ = 1000090909958. Its totient is φ = 1000090909956.

The previous prime is 1000090909943. The next prime is 1000090910051. The reversal of 1000090909957 is 7599090900001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 997503560001 + 2587349956 = 998751^2 + 50866^2 .

It is an emirp because it is prime and its reverse (7599090900001) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1000090909957 - 2¹⁵ = 1000090877189 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1000090909957.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1000090909907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500045454978 + 500045454979.

It is an arithmetic number, because the mean of its divisors is an integer number (500045454979).

Almost surely, 2^{1000090909957} is an apocalyptic number.

It is an amenable number.

1000090909957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1000090909957 is an equidigital number, since it uses as much as digits as its factorization.

1000090909957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 229635, while the sum is 49.

The spelling of 1000090909957 in words is "one trillion, ninety million, nine hundred nine thousand, nine hundred fifty-seven".