6513261494 has 16 divisors (see below), whose sum is σ = 9836542800. Its totient is φ = 3234432864.

The previous prime is 6513261481. The next prime is 6513261497. The reversal of 6513261494 is 4941623156.

It is a super-2 number, since 2×6513261494² = 84845150578446224072, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6513261497) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1146092 + ... + 1151760.

It is an arithmetic number, because the mean of its divisors is an integer number (614783925).

Almost surely, 2^6513261494 is an apocalyptic number.

6513261494 is a deficient number, since it is larger than the sum of its proper divisors (3323281306).

6513261494 is a wasteful number, since it uses less digits than its factorization.

6513261494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9487.

The product of its digits is 155520, while the sum is 41.

The square root of 6513261494 is about 80704.7798708354. The cubic root of 6513261494 is about 1867.5239130118.

The spelling of 6513261494 in words is "six billion, five hundred thirteen million, two hundred sixty-one thousand, four hundred ninety-four".