6451363880 has 128 divisors (see below), whose sum is σ = 15950753280. Its totient is φ = 2333936640.

The previous prime is 6451363879. The next prime is 6451363913. The reversal of 6451363880 is 883631546.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7272797 + ... + 7273683.

It is an arithmetic number, because the mean of its divisors is an integer number (124615260).

Almost surely, 2^6451363880 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 6451363880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7975376640).

6451363880 is an abundant number, since it is smaller than the sum of its proper divisors (9499389400).

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

6451363880 is a wasteful number, since it uses less digits than its factorization.

6451363880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179 (or 1175 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 44.

The square root of 6451363880 is about 80320.3827182117. The cubic root of 6451363880 is about 1861.5891802262.

The spelling of 6451363880 in words is "six billion, four hundred fifty-one million, three hundred sixty-three thousand, eight hundred eighty".