4712856509 has 2 divisors, whose sum is σ = 4712856510. Its totient is φ = 4712856508.

The previous prime is 4712856503. The next prime is 4712856529. The reversal of 4712856509 is 9056582174.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4559220484 + 153636025 = 67522^2 + 12395^2 .

It is a cyclic number.

It is not a de Polignac number, because 4712856509 - 2²⁴ = 4696079293 is a prime.

It is a super-2 number, since 2×4712856509² = 44422032948847334162, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4712856503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2356428254 + 2356428255.

It is an arithmetic number, because the mean of its divisors is an integer number (2356428255).

Almost surely, 2^4712856509 is an apocalyptic number.

It is an amenable number.

4712856509 is a deficient number, since it is larger than the sum of its proper divisors (1).

4712856509 is an equidigital number, since it uses as much as digits as its factorization.

4712856509 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 604800, while the sum is 47.

The square root of 4712856509 is about 68650.2476980236. The cubic root of 4712856509 is about 1676.5946360203.

The spelling of 4712856509 in words is "four billion, seven hundred twelve million, eight hundred fifty-six thousand, five hundred nine".