1259117066989 has 4 divisors (see below), whose sum is σ = 1259129180700. Its totient is φ = 1259104953280.

The previous prime is 1259117066899. The next prime is 1259117067001. The reversal of 1259117066989 is 9896607119521.

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

It can be written as a sum of positive squares in 2 ways, for example, as 394371440100 + 864745626889 = 627990^2 + 929917^2 .

It is a cyclic number.

It is not a de Polignac number, because 1259117066989 - 2¹¹ = 1259117064941 is a prime.

It is a super-2 number, since 2×1259117066989² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1259117066989.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1259117069989) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5899582 + ... + 6109279.

It is an arithmetic number, because the mean of its divisors is an integer number (314782295175).

Almost surely, 2^{1259117066989} is an apocalyptic number.

It is an amenable number.

1259117066989 is a deficient number, since it is larger than the sum of its proper divisors (12113711).

1259117066989 is a wasteful number, since it uses less digits than its factorization.

1259117066989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12113710.

The product of its (nonzero) digits is 14696640, while the sum is 64.

The spelling of 1259117066989 in words is "one trillion, two hundred fifty-nine billion, one hundred seventeen million, sixty-six thousand, nine hundred eighty-nine".