6509964412 has 48 divisors (see below), whose sum is σ = 13456199680. Its totient is φ = 2696716800.

The previous prime is 6509964323. The next prime is 6509964421. The reversal of 6509964412 is 2144699056.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 793612 + ... + 801772.

Almost surely, 2^6509964412 is an apocalyptic number.

6509964412 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6509964412, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6728099840).

6509964412 is an abundant number, since it is smaller than the sum of its proper divisors (6946235268).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6509964412 is a wasteful number, since it uses less digits than its factorization.

6509964412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9122 (or 9120 counting only the distinct ones).

The product of its (nonzero) digits is 466560, while the sum is 46.

The square root of 6509964412 is about 80684.3504776484. The cubic root of 6509964412 is about 1867.2087396918.

It can be divided in two parts, 6509 and 964412, that added together give a triangular number (970921 = T₁₃₉₃).

The spelling of 6509964412 in words is "six billion, five hundred nine million, nine hundred sixty-four thousand, four hundred twelve".