1009866883397 has 2 divisors, whose sum is σ = 1009866883398. Its totient is φ = 1009866883396.

The previous prime is 1009866883373. The next prime is 1009866883409. The reversal of 1009866883397 is 7933886689001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 643213624036 + 366653259361 = 802006^2 + 605519^2 .

It is a cyclic number.

It is not a de Polignac number, because 1009866883397 - 2²⁰ = 1009865834821 is a prime.

It is a super-2 number, since 2×1009866883397² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1009866883997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 504933441698 + 504933441699.

It is an arithmetic number, because the mean of its divisors is an integer number (504933441699).

Almost surely, 2^{1009866883397} is an apocalyptic number.

It is an amenable number.

1009866883397 is a deficient number, since it is larger than the sum of its proper divisors (1).

1009866883397 is an equidigital number, since it uses as much as digits as its factorization.

1009866883397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94058496, while the sum is 68.

The spelling of 1009866883397 in words is "one trillion, nine billion, eight hundred sixty-six million, eight hundred eighty-three thousand, three hundred ninety-seven".