6493024638 has 48 divisors (see below), whose sum is σ = 14607932976. Its totient is φ = 2161572480.

The previous prime is 6493024627. The next prime is 6493024669. The reversal of 6493024638 is 8364203946.

6493024638 is a `hidden beast` number, since 6 + 4 + 9 + 3 + 0 + 2 + 4 + 638 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 6493024593 and 6493024602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 390870 + ... + 407142.

It is an arithmetic number, because the mean of its divisors is an integer number (304331937).

Almost surely, 2^6493024638 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6493024638, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7303966488).

6493024638 is an abundant number, since it is smaller than the sum of its proper divisors (8114908338).

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

6493024638 is a wasteful number, since it uses less digits than its factorization.

6493024638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17111 (or 17099 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 45.

The square root of 6493024638 is about 80579.3065122802. The cubic root of 6493024638 is about 1865.5877595556.

The spelling of 6493024638 in words is "six billion, four hundred ninety-three million, twenty-four thousand, six hundred thirty-eight".