6453145352178 has 480 divisors, whose sum is σ = 17864321904000. Its totient is φ = 1740119080896.

The previous prime is 6453145352141. The next prime is 6453145352179. The reversal of 6453145352178 is 8712535413546.

It is a happy number.

6453145352178 is a `hidden beast` number, since 6 + 4 + 5 + 3 + 1 + 45 + 3 + 521 + 78 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (6453145352179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 239 ways as a sum of consecutive naturals, for example, 7803077401 + ... + 7803078227.

It is an arithmetic number, because the mean of its divisors is an integer number (37217337300).

Almost surely, 2^{6453145352178} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6453145352178, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8932160952000).

6453145352178 is an abundant number, since it is smaller than the sum of its proper divisors (11411176551822).

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

6453145352178 is a wasteful number, since it uses less digits than its factorization.

6453145352178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1289 (or 1247 counting only the distinct ones).

The product of its digits is 12096000, while the sum is 54.

The spelling of 6453145352178 in words is "six trillion, four hundred fifty-three billion, one hundred forty-five million, three hundred fifty-two thousand, one hundred seventy-eight".