6489279677999 has 4 divisors (see below), whose sum is σ = 6507355666320. Its totient is φ = 6471203689680.

The previous prime is 6489279677987. The next prime is 6489279678073. The reversal of 6489279677999 is 9997769729846.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6489279677999 is a prime.

It is a super-2 number, since 2×6489279677999² (a number of 26 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 (6489279670999) 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, 9037993622 + ... + 9037994339.

It is an arithmetic number, because the mean of its divisors is an integer number (1626838916580).

Almost surely, 2^{6489279677999} is an apocalyptic number.

6489279677999 is a deficient number, since it is larger than the sum of its proper divisors (18075988321).

6489279677999 is a wasteful number, since it uses less digits than its factorization.

6489279677999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18075988320.

The product of its digits is 46664771328, while the sum is 92.

The spelling of 6489279677999 in words is "six trillion, four hundred eighty-nine billion, two hundred seventy-nine million, six hundred seventy-seven thousand, nine hundred ninety-nine".