6489690500195 has 48 divisors (see below), whose sum is σ = 9696237907968. Its totient is φ = 4079863391040.

The previous prime is 6489690500173. The next prime is 6489690500197. The reversal of 6489690500195 is 5910050969846.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-6489690500195 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6489690500197) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 7892639 + ... + 8676008.

It is an arithmetic number, because the mean of its divisors is an integer number (202004956416).

Almost surely, 2^{6489690500195} is an apocalyptic number.

6489690500195 is a deficient number, since it is larger than the sum of its proper divisors (3206547407773).

6489690500195 is a wasteful number, since it uses less digits than its factorization.

6489690500195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16568728 (or 16568709 counting only the distinct ones).

The product of its (nonzero) digits is 20995200, while the sum is 62.

The spelling of 6489690500195 in words is "six trillion, four hundred eighty-nine billion, six hundred ninety million, five hundred thousand, one hundred ninety-five".