17982062989 has 4 divisors (see below), whose sum is σ = 19616796000. Its totient is φ = 16347329980.

The previous prime is 17982062983. The next prime is 17982062999. The reversal of 17982062989 is 98926028971.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-17982062989 is a prime.

It is a super-2 number, since 2×17982062989² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (17982062983) 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, 817366489 + ... + 817366510.

It is an arithmetic number, because the mean of its divisors is an integer number (4904199000).

Almost surely, 2^17982062989 is an apocalyptic number.

It is an amenable number.

17982062989 is a deficient number, since it is larger than the sum of its proper divisors (1634733011).

17982062989 is a wasteful number, since it uses less digits than its factorization.

17982062989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1634733010.

The product of its (nonzero) digits is 7838208, while the sum is 61.

The spelling of 17982062989 in words is "seventeen billion, nine hundred eighty-two million, sixty-two thousand, nine hundred eighty-nine".