6246402809 has 4 divisors (see below), whose sum is σ = 6251139840. Its totient is φ = 6241665780.

The previous prime is 6246402793. The next prime is 6246402839. The reversal of 6246402809 is 9082046426.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 6246402809 - 2⁴ = 6246402793 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6246402839) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2366537 + ... + 2369174.

It is an arithmetic number, because the mean of its divisors is an integer number (1562784960).

Almost surely, 2^6246402809 is an apocalyptic number.

It is an amenable number.

6246402809 is a deficient number, since it is larger than the sum of its proper divisors (4737031).

6246402809 is a wasteful number, since it uses less digits than its factorization.

6246402809 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737030.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 6246402809 is about 79034.1875962548. The cubic root of 6246402809 is about 1841.6622904350.

The spelling of 6246402809 in words is "six billion, two hundred forty-six million, four hundred two thousand, eight hundred nine".