6468431398 has 36 divisors (see below), whose sum is σ = 11470241628. Its totient is φ = 2711969520.

The previous prime is 6468431339. The next prime is 6468431407. The reversal of 6468431398 is 8931348646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 4903383 + ... + 4904701.

It is an arithmetic number, because the mean of its divisors is an integer number (318617823).

Almost surely, 2^6468431398 is an apocalyptic number.

6468431398 is a deficient number, since it is larger than the sum of its proper divisors (5001810230).

6468431398 is a wasteful number, since it uses less digits than its factorization.

6468431398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677 (or 1345 counting only the distinct ones).

The product of its digits is 2985984, while the sum is 52.

The square root of 6468431398 is about 80426.5590336923. The cubic root of 6468431398 is about 1863.2293878678.

The spelling of 6468431398 in words is "six billion, four hundred sixty-eight million, four hundred thirty-one thousand, three hundred ninety-eight".