9618239490459 has 4 divisors (see below), whose sum is σ = 12824319320616. Its totient is φ = 6412159660304.

The previous prime is 9618239490269. The next prime is 9618239490487. The reversal of 9618239490459 is 9540949328169.

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

It is a cyclic number.

It is not a de Polignac number, because 9618239490459 - 2¹² = 9618239486363 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 9618239490393 and 9618239490402.

It is not an unprimeable number, because it can be changed into a prime (9618239490059) 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, 1603039915074 + ... + 1603039915079.

It is an arithmetic number, because the mean of its divisors is an integer number (3206079830154).

Almost surely, 2^{9618239490459} is an apocalyptic number.

9618239490459 is a deficient number, since it is larger than the sum of its proper divisors (3206079830157).

9618239490459 is a wasteful number, since it uses less digits than its factorization.

9618239490459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3206079830156.

The product of its (nonzero) digits is 151165440, while the sum is 69.

The spelling of 9618239490459 in words is "nine trillion, six hundred eighteen billion, two hundred thirty-nine million, four hundred ninety thousand, four hundred fifty-nine".