6400015200009 has 24 divisors (see below), whose sum is σ = 9345035681280. Its totient is φ = 4220356220352.

The previous prime is 6400015199957. The next prime is 6400015200017. The reversal of 6400015200009 is 9000025100046.

6400015200009 is a `hidden beast` number, since 640 + 0 + 0 + 15 + 2 + 0 + 0 + 0 + 0 + 9 = 666.

It is not a de Polignac number, because 6400015200009 - 2⁷ = 6400015199881 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6400015200209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3200004 + ... + 4800005.

It is an arithmetic number, because the mean of its divisors is an integer number (389376486720).

Almost surely, 2^{6400015200009} is an apocalyptic number.

It is an amenable number.

6400015200009 is a deficient number, since it is larger than the sum of its proper divisors (2945020481271).

6400015200009 is a wasteful number, since it uses less digits than its factorization.

6400015200009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8000981 (or 8000978 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The spelling of 6400015200009 in words is "six trillion, four hundred billion, fifteen million, two hundred thousand, nine".