6491293443859 has 32 divisors (see below), whose sum is σ = 8191263375360. Its totient is φ = 5015548058400.

The previous prime is 6491293443853. The next prime is 6491293443863. The reversal of 6491293443859 is 9583443921946.

It is not a de Polignac number, because 6491293443859 - 2¹¹ = 6491293441811 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6491293443794 and 6491293443803.

It is not an unprimeable number, because it can be changed into a prime (6491293443853) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4970787 + ... + 6139324.

It is an arithmetic number, because the mean of its divisors is an integer number (255976980480).

Almost surely, 2^{6491293443859} is an apocalyptic number.

6491293443859 is a deficient number, since it is larger than the sum of its proper divisors (1699969931501).

6491293443859 is a wasteful number, since it uses less digits than its factorization.

6491293443859 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110351.

The product of its digits is 201553920, while the sum is 67.

The spelling of 6491293443859 in words is "six trillion, four hundred ninety-one billion, two hundred ninety-three million, four hundred forty-three thousand, eight hundred fifty-nine".