63545346901 has 4 divisors (see below), whose sum is σ = 63575084812. Its totient is φ = 63515608992.

The previous prime is 63545346899. The next prime is 63545346919. The reversal of 63545346901 is 10964354536.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 34539850801 + 29005496100 = 185849^2 + 170310^2 .

It is a cyclic number.

It is not a de Polignac number, because 63545346901 - 2¹ = 63545346899 is a prime.

It is a super-2 number, since 2×63545346901² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63545346971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14865750 + ... + 14870023.

It is an arithmetic number, because the mean of its divisors is an integer number (15893771203).

Almost surely, 2^63545346901 is an apocalyptic number.

It is an amenable number.

63545346901 is a deficient number, since it is larger than the sum of its proper divisors (29737911).

63545346901 is a wasteful number, since it uses less digits than its factorization.

63545346901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29737910.

The product of its (nonzero) digits is 1166400, while the sum is 46.

The spelling of 63545346901 in words is "sixty-three billion, five hundred forty-five million, three hundred forty-six thousand, nine hundred one".