63621547201 has 8 divisors (see below), whose sum is σ = 67373324424. Its totient is φ = 59870807040.

The previous prime is 63621547181. The next prime is 63621547211. The reversal of 63621547201 is 10274512636.

It can be written as a sum of positive squares in 4 ways, for example, as 4096576 + 63617450625 = 2024^2 + 252225^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 63621547201 - 2⁹ = 63621546689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63621547211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 131140 + ... + 380053.

It is an arithmetic number, because the mean of its divisors is an integer number (8421665553).

Almost surely, 2^63621547201 is an apocalyptic number.

It is an amenable number.

63621547201 is a deficient number, since it is larger than the sum of its proper divisors (3751777223).

63621547201 is a wasteful number, since it uses less digits than its factorization.

63621547201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518531.

The product of its (nonzero) digits is 60480, while the sum is 37.

The spelling of 63621547201 in words is "sixty-three billion, six hundred twenty-one million, five hundred forty-seven thousand, two hundred one".