6430363640 has 16 divisors (see below), whose sum is σ = 14468318280. Its totient is φ = 2572145440.

The previous prime is 6430363637. The next prime is 6430363669. The reversal of 6430363640 is 463630346.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 6430363640.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80379506 + ... + 80379585.

Almost surely, 2^6430363640 is an apocalyptic number.

It is an amenable number.

6430363640 is an abundant number, since it is smaller than the sum of its proper divisors (8037954640).

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

6430363640 is a wasteful number, since it uses less digits than its factorization.

6430363640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160759102 (or 160759098 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 35.

The square root of 6430363640 is about 80189.5481967569. The cubic root of 6430363640 is about 1859.5670592148.

Adding to 6430363640 its reverse (463630346), we get a palindrome (6893993986).

The spelling of 6430363640 in words is "six billion, four hundred thirty million, three hundred sixty-three thousand, six hundred forty".