6490326135871 has 4 divisors (see below), whose sum is σ = 6490332389632. Its totient is φ = 6490319882112.

The previous prime is 6490326135833. The next prime is 6490326135889. The reversal of 6490326135871 is 1785316230946.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 6490326135871 - 2²¹ = 6490324038719 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 (6490326135571) 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, 1156095 + ... + 3783808.

It is an arithmetic number, because the mean of its divisors is an integer number (1622583097408).

It is a 1-persistent number, because it is pandigital, but 2⋅6490326135871 = 12980652271742 is not.

Almost surely, 2^{6490326135871} is an apocalyptic number.

6490326135871 is a deficient number, since it is larger than the sum of its proper divisors (6253761).

6490326135871 is a wasteful number, since it uses less digits than its factorization.

6490326135871 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6253760.

The product of its (nonzero) digits is 6531840, while the sum is 55.

The spelling of 6490326135871 in words is "six trillion, four hundred ninety billion, three hundred twenty-six million, one hundred thirty-five thousand, eight hundred seventy-one".