6493455408 has 80 divisors (see below), whose sum is σ = 18338040576. Its totient is φ = 1963595520.

The previous prime is 6493455407. The next prime is 6493455461. The reversal of 6493455408 is 8045543946.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is not an unprimeable number, because it can be changed into a prime (6493455407) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 244510 + ... + 269762.

Almost surely, 2^6493455408 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6493455408, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (9169020288).

6493455408 is an abundant number, since it is smaller than the sum of its proper divisors (11844585168).

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

6493455408 is a wasteful number, since it uses less digits than its factorization.

6493455408 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25762 (or 25756 counting only the distinct ones).

The product of its (nonzero) digits is 2073600, while the sum is 48.

The square root of 6493455408 is about 80581.9794246828. The cubic root of 6493455408 is about 1865.6290151857.

The spelling of 6493455408 in words is "six billion, four hundred ninety-three million, four hundred fifty-five thousand, four hundred eight".