926866872389 has 2 divisors, whose sum is σ = 926866872390. Its totient is φ = 926866872388.

The previous prime is 926866872353. The next prime is 926866872509. The reversal of 926866872389 is 983278668629.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 780690643489 + 146176228900 = 883567^2 + 382330^2 .

It is a cyclic number.

It is not a de Polignac number, because 926866872389 - 2⁸ = 926866872133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (926866872089) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 463433436194 + 463433436195.

It is an arithmetic number, because the mean of its divisors is an integer number (463433436195).

Almost surely, 2^926866872389 is an apocalyptic number.

It is an amenable number.

926866872389 is a deficient number, since it is larger than the sum of its proper divisors (1).

926866872389 is an equidigital number, since it uses as much as digits as its factorization.

926866872389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 752467968, while the sum is 74.

The spelling of 926866872389 in words is "nine hundred twenty-six billion, eight hundred sixty-six million, eight hundred seventy-two thousand, three hundred eighty-nine".