63451402146 has 96 divisors (see below), whose sum is σ = 152870328000. Its totient is φ = 18858147840.

The previous prime is 63451402127. The next prime is 63451402163. The reversal of 63451402146 is 64120415436.

63451402146 is a `hidden beast` number, since 63 + 4 + 51 + 402 + 146 = 666.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 63451402146.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5239170 + ... + 5251266.

It is an arithmetic number, because the mean of its divisors is an integer number (1592399250).

Almost surely, 2^63451402146 is an apocalyptic number.

63451402146 is a gapful number since it is divisible by the number (66) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 63451402146, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (76435164000).

63451402146 is an abundant number, since it is smaller than the sum of its proper divisors (89418925854).

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

63451402146 is a wasteful number, since it uses less digits than its factorization.

63451402146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12624 (or 12621 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 63451402146 in words is "sixty-three billion, four hundred fifty-one million, four hundred two thousand, one hundred forty-six".