1963234459609 has 16 divisors (see below), whose sum is σ = 2204656928640. Its totient is φ = 1738439112960.

The previous prime is 1963234459597. The next prime is 1963234459621. The reversal of 1963234459609 is 9069544323691.

It is an interprime number because it is at equal distance from previous prime (1963234459597) and next prime (1963234459621).

It is a cyclic number.

It is not a de Polignac number, because 1963234459609 - 2³¹ = 1961086975961 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (61).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1963234459309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41132379 + ... + 41180080.

It is an arithmetic number, because the mean of its divisors is an integer number (137791058040).

Almost surely, 2^{1963234459609} is an apocalyptic number.

It is an amenable number.

1963234459609 is a deficient number, since it is larger than the sum of its proper divisors (241422469031).

1963234459609 is a wasteful number, since it uses less digits than its factorization.

1963234459609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82312560.

The product of its (nonzero) digits is 37791360, while the sum is 61.

The spelling of 1963234459609 in words is "one trillion, nine hundred sixty-three billion, two hundred thirty-four million, four hundred fifty-nine thousand, six hundred nine".