42043524261 has 16 divisors (see below), whose sum is σ = 56787382080. Its totient is φ = 27665447040.

The previous prime is 42043524247. The next prime is 42043524307. The reversal of 42043524261 is 16242534024.

It is not a de Polignac number, because 42043524261 - 2¹³ = 42043516069 is a prime.

It is a super-2 number, since 2×42043524261² (a number of 22 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42043524241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14571 + ... + 290343.

It is an arithmetic number, because the mean of its divisors is an integer number (3549211380).

Almost surely, 2^42043524261 is an apocalyptic number.

It is an amenable number.

42043524261 is a deficient number, since it is larger than the sum of its proper divisors (14743857819).

42043524261 is a wasteful number, since it uses less digits than its factorization.

42043524261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276436.

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 42043524261 in words is "forty-two billion, forty-three million, five hundred twenty-four thousand, two hundred sixty-one".