6489039061 has 4 divisors (see below), whose sum is σ = 6489200992. Its totient is φ = 6488877132.

The previous prime is 6489039041. The next prime is 6489039083. The reversal of 6489039061 is 1609309846.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6489039061 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6489039001) 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, 28270 + ... + 117376.

It is an arithmetic number, because the mean of its divisors is an integer number (1622300248).

Almost surely, 2^6489039061 is an apocalyptic number.

It is an amenable number.

6489039061 is a deficient number, since it is larger than the sum of its proper divisors (161931).

6489039061 is an equidigital number, since it uses as much as digits as its factorization.

6489039061 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161930.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 6489039061 is about 80554.5719434968. The cubic root of 6489039061 is about 1865.2059669935.

The spelling of 6489039061 in words is "six billion, four hundred eighty-nine million, thirty-nine thousand, sixty-one".