6464126280 has 64 divisors (see below), whose sum is σ = 19398075840. Its totient is φ = 1723260672.

The previous prime is 6464126267. The next prime is 6464126309. The reversal of 6464126280 is 826214646.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 589407 + ... + 600273.

It is an arithmetic number, because the mean of its divisors is an integer number (303094935).

Almost surely, 2^6464126280 is an apocalyptic number.

6464126280 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

6464126280 is an abundant number, since it is smaller than the sum of its proper divisors (12933949560).

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

6464126280 is a wasteful number, since it uses less digits than its factorization.

6464126280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15838 (or 15834 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 39.

The square root of 6464126280 is about 80399.7902982340. The cubic root of 6464126280 is about 1862.8159335533.

The spelling of 6464126280 in words is "six billion, four hundred sixty-four million, one hundred twenty-six thousand, two hundred eighty".