63634420252401 has 16 divisors (see below), whose sum is σ = 84943343842560. Its totient is φ = 42374223048960.

The previous prime is 63634420252367. The next prime is 63634420252439. The reversal of 63634420252401 is 10425202443636.

It is a happy number.

63634420252401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 63634420252401 - 2¹⁷ = 63634420121329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (63634420252471) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 304324155 + ... + 304533183.

It is an arithmetic number, because the mean of its divisors is an integer number (5308958990160).

Almost surely, 2^{63634420252401} is an apocalyptic number.

It is an amenable number.

63634420252401 is a deficient number, since it is larger than the sum of its proper divisors (21308923590159).

63634420252401 is a wasteful number, since it uses less digits than its factorization.

63634420252401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 325096.

The product of its (nonzero) digits is 829440, while the sum is 42.

The spelling of 63634420252401 in words is "sixty-three trillion, six hundred thirty-four billion, four hundred twenty million, two hundred fifty-two thousand, four hundred one".