63374479365620 has 90 divisors (see below), whose sum is σ = 140508534128466. Its totient is φ = 24010721851680.

The previous prime is 63374479365619. The next prime is 63374479365647. The reversal of 63374479365620 is 2656397447336.

63374479365620 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 50699583492496 + 12674895873124 = 7120364^2 + 3560182^2 .

It is a congruent number.

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 29 ways as a sum of consecutive naturals, for example, 12852254555 + ... + 12852259485.

Almost surely, 2^{63374479365620} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 63374479365620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70254267064233).

63374479365620 is an abundant number, since it is smaller than the sum of its proper divisors (77134054762846).

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

63374479365620 is an frugal number, since it uses more digits than its factorization.

63374479365620 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9947 (or 4957 counting only the distinct ones).

The product of its (nonzero) digits is 411505920, while the sum is 65.

The spelling of 63374479365620 in words is "sixty-three trillion, three hundred seventy-four billion, four hundred seventy-nine million, three hundred sixty-five thousand, six hundred twenty".