402643522001 has 16 divisors (see below), whose sum is σ = 481345248000. Its totient is φ = 329310482688.

The previous prime is 402643521983. The next prime is 402643522027. The reversal of 402643522001 is 100225346204.

It is a cyclic number.

It is not a de Polignac number, because 402643522001 - 2¹⁴ = 402643505617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (402643522051) 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, 2991476 + ... + 3123173.

It is an arithmetic number, because the mean of its divisors is an integer number (30084078000).

Almost surely, 2^402643522001 is an apocalyptic number.

It is an amenable number.

402643522001 is a deficient number, since it is larger than the sum of its proper divisors (78701725999).

402643522001 is a wasteful number, since it uses less digits than its factorization.

402643522001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6115088.

The product of its (nonzero) digits is 11520, while the sum is 29.

Adding to 402643522001 its reverse (100225346204), we get a palindrome (502868868205).

The spelling of 402643522001 in words is "four hundred two billion, six hundred forty-three million, five hundred twenty-two thousand, one".