6398051658 has 8 divisors (see below), whose sum is σ = 12796103328. Its totient is φ = 2132683884.

The previous prime is 6398051623. The next prime is 6398051663. The reversal of 6398051658 is 8561508936.

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

6398051658 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 6398051658.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 533170966 + ... + 533170977.

It is an arithmetic number, because the mean of its divisors is an integer number (1599512916).

Almost surely, 2^6398051658 is an apocalyptic number.

6398051658 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

6398051658 is a wasteful number, since it uses less digits than its factorization.

6398051658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066341948.

The product of its (nonzero) digits is 1555200, while the sum is 51.

The square root of 6398051658 is about 79987.8219355922. The cubic root of 6398051658 is about 1856.4471101052.

The spelling of 6398051658 in words is "six billion, three hundred ninety-eight million, fifty-one thousand, six hundred fifty-eight".