6436772812 has 24 divisors (see below), whose sum is σ = 11593532160. Its totient is φ = 3125688720.

The previous prime is 6436772803. The next prime is 6436772833. The reversal of 6436772812 is 2182776346.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150112 + ... + 188167.

It is an arithmetic number, because the mean of its divisors is an integer number (483063840).

Almost surely, 2^6436772812 is an apocalyptic number.

It is an amenable number.

6436772812 is a deficient number, since it is larger than the sum of its proper divisors (5156759348).

6436772812 is a wasteful number, since it uses less digits than its factorization.

6436772812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338421 (or 338419 counting only the distinct ones).

The product of its digits is 677376, while the sum is 46.

The square root of 6436772812 is about 80229.5008834032. The cubic root of 6436772812 is about 1860.1846669851.

The spelling of 6436772812 in words is "six billion, four hundred thirty-six million, seven hundred seventy-two thousand, eight hundred twelve".