42645485801 has 8 divisors (see below), whose sum is σ = 43626281160. Its totient is φ = 41675409792.

The previous prime is 42645485741. The next prime is 42645485803. The reversal of 42645485801 is 10858454624.

It can be written as a sum of positive squares in 4 ways, for example, as 16390144576 + 26255341225 = 128024^2 + 162035^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 42645485801 - 2¹⁴ = 42645469417 is a prime.

It is a super-2 number, since 2×42645485801² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (42645485803) 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 7 ways as a sum of consecutive naturals, for example, 2671790 + ... + 2687703.

It is an arithmetic number, because the mean of its divisors is an integer number (5453285145).

Almost surely, 2^42645485801 is an apocalyptic number.

It is an amenable number.

42645485801 is a deficient number, since it is larger than the sum of its proper divisors (980795359).

42645485801 is a wasteful number, since it uses less digits than its factorization.

42645485801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5359675.

The product of its (nonzero) digits is 1228800, while the sum is 47.

The spelling of 42645485801 in words is "forty-two billion, six hundred forty-five million, four hundred eighty-five thousand, eight hundred one".