6463243740 has 24 divisors (see below), whose sum is σ = 18097082640. Its totient is φ = 1723531648.

The previous prime is 6463243739. The next prime is 6463243751. The reversal of 6463243740 is 473423646.

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, 53860305 + ... + 53860424.

It is an arithmetic number, because the mean of its divisors is an integer number (754045110).

Almost surely, 2^6463243740 is an apocalyptic number.

6463243740 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6463243740 is an abundant number, since it is smaller than the sum of its proper divisors (11633838900).

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

6463243740 is a wasteful number, since it uses less digits than its factorization.

6463243740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107720741 (or 107720739 counting only the distinct ones).

The product of its (nonzero) digits is 290304, while the sum is 39.

The square root of 6463243740 is about 80394.3016637373. The cubic root of 6463243740 is about 1862.7311536296.

The spelling of 6463243740 in words is "six billion, four hundred sixty-three million, two hundred forty-three thousand, seven hundred forty".