42522666401 has 4 divisors (see below), whose sum is σ = 43427404032. Its totient is φ = 41617928772.

The previous prime is 42522666391. The next prime is 42522666443. The reversal of 42522666401 is 10466622524.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 42522666401 - 2¹⁸ = 42522404257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42522666451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452368745 + ... + 452368838.

It is an arithmetic number, because the mean of its divisors is an integer number (10856851008).

Almost surely, 2^42522666401 is an apocalyptic number.

It is an amenable number.

42522666401 is a deficient number, since it is larger than the sum of its proper divisors (904737631).

42522666401 is an equidigital number, since it uses as much as digits as its factorization.

42522666401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 904737630.

The product of its (nonzero) digits is 138240, while the sum is 38.

The spelling of 42522666401 in words is "forty-two billion, five hundred twenty-two million, six hundred sixty-six thousand, four hundred one".