6489691645346 has 16 divisors (see below), whose sum is σ = 11980969191744. Its totient is φ = 2567350540944.

The previous prime is 6489691645319. The next prime is 6489691645373. The reversal of 6489691645346 is 6435461969846.

It is an interprime number because it is at equal distance from previous prime (6489691645319) and next prime (6489691645373).

It is a self number, because there is not a number n which added to its sum of digits gives 6489691645346.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17828823020 + ... + 17828823383.

It is an arithmetic number, because the mean of its divisors is an integer number (748810574484).

Almost surely, 2^{6489691645346} is an apocalyptic number.

6489691645346 is a deficient number, since it is larger than the sum of its proper divisors (5491277546398).

6489691645346 is a wasteful number, since it uses less digits than its factorization.

6489691645346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35657646425.

The product of its digits is 806215680, while the sum is 71.

The spelling of 6489691645346 in words is "six trillion, four hundred eighty-nine billion, six hundred ninety-one million, six hundred forty-five thousand, three hundred forty-six".