6468501988 has 24 divisors (see below), whose sum is σ = 12344958080. Its totient is φ = 2947669920.

The previous prime is 6468501979. The next prime is 6468502003. The reversal of 6468501988 is 8891058646.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 783198 + ... + 791413.

Almost surely, 2^6468501988 is an apocalyptic number.

It is an amenable number.

6468501988 is a deficient number, since it is larger than the sum of its proper divisors (5876456092).

6468501988 is a wasteful number, since it uses less digits than its factorization.

6468501988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574707 (or 1574705 counting only the distinct ones).

The product of its (nonzero) digits is 3317760, while the sum is 55.

The square root of 6468501988 is about 80426.9978800651. The cubic root of 6468501988 is about 1863.2361656514.

The spelling of 6468501988 in words is "six billion, four hundred sixty-eight million, five hundred one thousand, nine hundred eighty-eight".