6303647640 has 128 divisors (see below), whose sum is σ = 19695960000. Its totient is φ = 1611982848.

The previous prime is 6303647633. The next prime is 6303647657. The reversal of 6303647640 is 467463036.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 512442 + ... + 524598.

Almost surely, 2^6303647640 is an apocalyptic number.

6303647640 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6303647640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9847980000).

6303647640 is an abundant number, since it is smaller than the sum of its proper divisors (13392312360).

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

6303647640 is a wasteful number, since it uses less digits than its factorization.

6303647640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12349 (or 12345 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 39.

The square root of 6303647640 is about 79395.5139790656. The cubic root of 6303647640 is about 1847.2711303601.

The spelling of 6303647640 in words is "six billion, three hundred three million, six hundred forty-seven thousand, six hundred forty".