6398412421500 has 864 divisors, whose sum is σ = 23853095884800. Its totient is φ = 1438116768000.

The previous prime is 6398412421487. The next prime is 6398412421529. The reversal of 6398412421500 is 51242148936.

6398412421500 is a `hidden beast` number, since 6 + 3 + 98 + 4 + 12 + 42 + 1 + 500 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 486231921 + ... + 486245079.

Almost surely, 2^{6398412421500} is an apocalyptic number.

6398412421500 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 6398412421500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11926547942400).

6398412421500 is an abundant number, since it is smaller than the sum of its proper divisors (17454683463300).

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

6398412421500 is a wasteful number, since it uses less digits than its factorization.

6398412421500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13272 (or 13246 counting only the distinct ones).

The product of its (nonzero) digits is 414720, while the sum is 45.

The spelling of 6398412421500 in words is "six trillion, three hundred ninety-eight billion, four hundred twelve million, four hundred twenty-one thousand, five hundred".