6382121280 has 224 divisors, whose sum is σ = 22019727360. Its totient is φ = 1560176640.

The previous prime is 6382121269. The next prime is 6382121281. The reversal of 6382121280 is 821212836.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6382121281) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 559797 + ... + 571083.

Almost surely, 2^6382121280 is an apocalyptic number.

6382121280 is a gapful number since it is divisible by the number (60) 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 6382121280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11009863680).

6382121280 is an abundant number, since it is smaller than the sum of its proper divisors (15637606080).

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

6382121280 is a wasteful number, since it uses less digits than its factorization.

6382121280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11357 (or 11347 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 33.

The square root of 6382121280 is about 79888.1798515901. The cubic root of 6382121280 is about 1854.9050529840.

The spelling of 6382121280 in words is "six billion, three hundred eighty-two million, one hundred twenty-one thousand, two hundred eighty".