6493398870 has 64 divisors (see below), whose sum is σ = 18584847360. Its totient is φ = 1419673728.

The previous prime is 6493398869. The next prime is 6493398871. The reversal of 6493398870 is 788933946.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (6493398869) and next prime (6493398871).

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 6493398870.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6493398871) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 667365 + ... + 677024.

It is an arithmetic number, because the mean of its divisors is an integer number (290388240).

Almost surely, 2^6493398870 is an apocalyptic number.

6493398870 is an abundant number, since it is smaller than the sum of its proper divisors (12091448490).

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

6493398870 is a wasteful number, since it uses less digits than its factorization.

6493398870 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1344429.

The product of its (nonzero) digits is 7838208, while the sum is 57.

The square root of 6493398870 is about 80581.6286134749. The cubic root of 6493398870 is about 1865.6236005421.

The spelling of 6493398870 in words is "six billion, four hundred ninety-three million, three hundred ninety-eight thousand, eight hundred seventy".