6210078952009 has 3 divisors (see below), whose sum is σ = 6210081444013. Its totient is φ = 6210076460006.

The previous prime is 6210078951959. The next prime is 6210078952073. The reversal of 6210078952009 is 9002598700126.

The square root of 6210078952009 is 2492003.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 6210078952009 - 2¹⁷ = 6210078820937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6210078452009) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1246002 + ... + 3738004.

Almost surely, 2^{6210078952009} is an apocalyptic number.

6210078952009 is the 2492003-rd square number.

6210078952009 is the 1246002-nd centered octagonal number.

It is an amenable number.

6210078952009 is a deficient number, since it is larger than the sum of its proper divisors (2492004).

6210078952009 is an frugal number, since it uses more digits than its factorization.

6210078952009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4984006 (or 2492003 counting only the distinct ones).

The product of its (nonzero) digits is 544320, while the sum is 49.

Multiplying 6210078952009 by its sum of digits (49), we get a square (304293868648441 = 17444021²).

The spelling of 6210078952009 in words is "six trillion, two hundred ten billion, seventy-eight million, nine hundred fifty-two thousand, nine".