6401204252063 has 4 divisors (see below), whose sum is σ = 6401252479440. Its totient is φ = 6401156024688.

The previous prime is 6401204252041. The next prime is 6401204252083. The reversal of 6401204252063 is 3602524021046.

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

It is a cyclic number.

It is not a de Polignac number, because 6401204252063 - 2⁶ = 6401204251999 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6401204252083) 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 3 ways as a sum of consecutive naturals, for example, 23914043 + ... + 24180236.

It is an arithmetic number, because the mean of its divisors is an integer number (1600313119860).

Almost surely, 2^{6401204252063} is an apocalyptic number.

6401204252063 is a deficient number, since it is larger than the sum of its proper divisors (48227377).

6401204252063 is a wasteful number, since it uses less digits than its factorization.

6401204252063 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48227376.

The product of its (nonzero) digits is 69120, while the sum is 35.

The spelling of 6401204252063 in words is "six trillion, four hundred one billion, two hundred four million, two hundred fifty-two thousand, sixty-three".