42543535600749 has 32 divisors (see below), whose sum is σ = 63006393369600. Its totient is φ = 25412578519680.

The previous prime is 42543535600733. The next prime is 42543535600763. The reversal of 42543535600749 is 94700653534524.

42543535600749 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 42543535600749 - 2⁴ = 42543535600733 is a prime.

It is a super-2 number, since 2×42543535600749² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42543535600949) 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 31 ways as a sum of consecutive naturals, for example, 182193487 + ... + 182426844.

It is an arithmetic number, because the mean of its divisors is an integer number (1968949792800).

Almost surely, 2^{42543535600749} is an apocalyptic number.

It is an amenable number.

42543535600749 is a deficient number, since it is larger than the sum of its proper divisors (20462857768851).

42543535600749 is a wasteful number, since it uses less digits than its factorization.

42543535600749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 364620465.

The product of its (nonzero) digits is 54432000, while the sum is 57.

The spelling of 42543535600749 in words is "forty-two trillion, five hundred forty-three billion, five hundred thirty-five million, six hundred thousand, seven hundred forty-nine".