6468693240 has 32 divisors (see below), whose sum is σ = 19406080080. Its totient is φ = 1724984832.

The previous prime is 6468693233. The next prime is 6468693263. The reversal of 6468693240 is 423968646.

It is a self number, because there is not a number n which added to its sum of digits gives 6468693240.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26952769 + ... + 26953008.

Almost surely, 2^6468693240 is an apocalyptic number.

6468693240 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6468693240 is an abundant number, since it is smaller than the sum of its proper divisors (12937386840).

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

6468693240 is a wasteful number, since it uses less digits than its factorization.

6468693240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53905791 (or 53905787 counting only the distinct ones).

The product of its (nonzero) digits is 1492992, while the sum is 48.

The square root of 6468693240 is about 80428.1868501336. The cubic root of 6468693240 is about 1863.2545286939.

The spelling of 6468693240 in words is "six billion, four hundred sixty-eight million, six hundred ninety-three thousand, two hundred forty".