6478502149980 has 288 divisors, whose sum is σ = 22800108764160. Its totient is φ = 1458308966400.

The previous prime is 6478502149979. The next prime is 6478502149981. The reversal of 6478502149980 is 899412058746.

6478502149980 is a `hidden beast` number, since 6 + 4 + 7 + 8 + 502 + 1 + 49 + 9 + 80 = 666.

It is an interprime number because it is at equal distance from previous prime (6478502149979) and next prime (6478502149981).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6478502149981) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 415254180 + ... + 415269780.

It is an arithmetic number, because the mean of its divisors is an integer number (79167044320).

Almost surely, 2^{6478502149980} is an apocalyptic number.

6478502149980 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 6478502149980, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11400054382080).

6478502149980 is an abundant number, since it is smaller than the sum of its proper divisors (16321606614180).

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

6478502149980 is a wasteful number, since it uses less digits than its factorization.

6478502149980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20609 (or 20604 counting only the distinct ones).

The product of its (nonzero) digits is 34836480, while the sum is 63.

The spelling of 6478502149980 in words is "six trillion, four hundred seventy-eight billion, five hundred two million, one hundred forty-nine thousand, nine hundred eighty".