1089702522985 has 4 divisors (see below), whose sum is σ = 1307643027588. Its totient is φ = 871762018384.

The previous prime is 1089702522913. The next prime is 1089702523057. The reversal of 1089702522985 is 5892252079801.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (1089702522913) and next prime (1089702523057).

It can be written as a sum of positive squares in 2 ways, for example, as 454578002176 + 635124520809 = 674224^2 + 796947^2 .

It is a cyclic number.

It is not a de Polignac number, because 1089702522985 - 2⁹ = 1089702522473 is a prime.

It is a Smith number, since the sum of its digits (58) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108970252294 + ... + 108970252303.

It is an arithmetic number, because the mean of its divisors is an integer number (326910756897).

Almost surely, 2^{1089702522985} is an apocalyptic number.

It is an amenable number.

1089702522985 is a deficient number, since it is larger than the sum of its proper divisors (217940504603).

1089702522985 is an equidigital number, since it uses as much as digits as its factorization.

1089702522985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217940504602.

The product of its (nonzero) digits is 7257600, while the sum is 58.

The spelling of 1089702522985 in words is "one trillion, eighty-nine billion, seven hundred two million, five hundred twenty-two thousand, nine hundred eighty-five".