6485792128 has 64 divisors (see below), whose sum is σ = 13708494000. Its totient is φ = 3045998592.

The previous prime is 6485792099. The next prime is 6485792129. The reversal of 6485792128 is 8212975846.

It is a tau number, because it is divible by the number of its divisors (64).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6485792129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1187548 + ... + 1192996.

Almost surely, 2^6485792128 is an apocalyptic number.

6485792128 is a gapful number since it is divisible by the number (68) 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 6485792128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (6854247000).

6485792128 is an abundant number, since it is smaller than the sum of its proper divisors (7222701872).

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

6485792128 is a wasteful number, since it uses less digits than its factorization.

6485792128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6027 (or 6015 counting only the distinct ones).

The product of its digits is 1935360, while the sum is 52.

The square root of 6485792128 is about 80534.4157984647. The cubic root of 6485792128 is about 1864.8948161874.

The spelling of 6485792128 in words is "six billion, four hundred eighty-five million, seven hundred ninety-two thousand, one hundred twenty-eight".