42326541561001 has 4 divisors (see below), whose sum is σ = 43125155552772. Its totient is φ = 41527927569232.

The previous prime is 42326541560951. The next prime is 42326541561011. The reversal of 42326541561001 is 10016514562324.

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 35098100653225 + 7228440907776 = 5924365^2 + 2688576^2 .

It is a cyclic number.

It is not a de Polignac number, because 42326541561001 - 2²⁵ = 42326508006569 is a prime.

It is a super-2 number, since 2×42326541561001² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42326541561011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399306995806 + ... + 399306995911.

It is an arithmetic number, because the mean of its divisors is an integer number (10781288888193).

Almost surely, 2^{42326541561001} is an apocalyptic number.

It is an amenable number.

42326541561001 is a deficient number, since it is larger than the sum of its proper divisors (798613991771).

42326541561001 is an equidigital number, since it uses as much as digits as its factorization.

42326541561001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 798613991770.

The product of its (nonzero) digits is 172800, while the sum is 40.

The spelling of 42326541561001 in words is "forty-two trillion, three hundred twenty-six billion, five hundred forty-one million, five hundred sixty-one thousand, one".