63470809251840 has 144 divisors (see below), whose sum is σ = 203105821107168. Its totient is φ = 16925548609536.

The previous prime is 63470809251769. The next prime is 63470809251869. The reversal of 63470809251840 is 4815290807436.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14175382 + ... + 18107541.

It is an arithmetic number, because the mean of its divisors is an integer number (1410457091022).

It is a 1-persistent number, because it is pandigital, but 2⋅63470809251840 = 126941618503680 is not.

Almost surely, 2^{63470809251840} is an apocalyptic number.

63470809251840 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

63470809251840 is an abundant number, since it is smaller than the sum of its proper divisors (139635011855328).

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

63470809251840 is an frugal number, since it uses more digits than its factorization.

63470809251840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32282965 (or 32282933 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 57.

The spelling of 63470809251840 in words is "sixty-three trillion, four hundred seventy billion, eight hundred nine million, two hundred fifty-one thousand, eight hundred forty".