4072535821531 has 16 divisors (see below), whose sum is σ = 4126365270720. Its totient is φ = 4019037419520.

The previous prime is 4072535821517. The next prime is 4072535821559. The reversal of 4072535821531 is 1351285352704.

4072535821531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 4072535821531 - 2²⁹ = 4071998950619 is a prime.

It is a super-2 number, since 2×4072535821531² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4072535821231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27915066 + ... + 28060576.

It is an arithmetic number, because the mean of its divisors is an integer number (257897829420).

Almost surely, 2^{4072535821531} is an apocalyptic number.

4072535821531 is a deficient number, since it is larger than the sum of its proper divisors (53829449189).

4072535821531 is a wasteful number, since it uses less digits than its factorization.

4072535821531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146646.

The product of its (nonzero) digits is 1008000, while the sum is 46.

The spelling of 4072535821531 in words is "four trillion, seventy-two billion, five hundred thirty-five million, eight hundred twenty-one thousand, five hundred thirty-one".