6399599094 has 48 divisors (see below), whose sum is σ = 15903108000. Its totient is φ = 1821939840.

The previous prime is 6399599071. The next prime is 6399599113. The reversal of 6399599094 is 4909959936.

6399599094 is a `hidden beast` number, since 6 + 39 + 9 + 599 + 0 + 9 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 54969 + ... + 125780.

It is an arithmetic number, because the mean of its divisors is an integer number (331314750).

Almost surely, 2^6399599094 is an apocalyptic number.

6399599094 is an abundant number, since it is smaller than the sum of its proper divisors (9503508906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

6399599094 is a wasteful number, since it uses less digits than its factorization.

6399599094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 181045 (or 181042 counting only the distinct ones).

The product of its (nonzero) digits is 21257640, while the sum is 63.

The square root of 6399599094 is about 79997.4942982591. The cubic root of 6399599094 is about 1856.5967651187.

The spelling of 6399599094 in words is "six billion, three hundred ninety-nine million, five hundred ninety-nine thousand, ninety-four".