6361812813 has 8 divisors (see below), whose sum is σ = 8483122368. Its totient is φ = 4240855904.

The previous prime is 6361812799. The next prime is 6361812823. The reversal of 6361812813 is 3182181636.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 6361812813 - 2⁶ = 6361812749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6361812823) 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 in 7 ways as a sum of consecutive naturals, for example, 42720 + ... + 120617.

It is an arithmetic number, because the mean of its divisors is an integer number (1060390296).

Almost surely, 2^6361812813 is an apocalyptic number.

It is an amenable number.

6361812813 is a deficient number, since it is larger than the sum of its proper divisors (2121309555).

6361812813 is a wasteful number, since it uses less digits than its factorization.

6361812813 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176323.

The product of its digits is 41472, while the sum is 39.

The square root of 6361812813 is about 79760.9729943160. The cubic root of 6361812813 is about 1852.9354724483.

The spelling of 6361812813 in words is "six billion, three hundred sixty-one million, eight hundred twelve thousand, eight hundred thirteen".