43145426052 has 72 divisors (see below), whose sum is σ = 113268519000. Its totient is φ = 13835847168.

The previous prime is 43145426039. The next prime is 43145426057. The reversal of 43145426052 is 25062454134.

43145426052 is a `hidden beast` number, since 4 + 3 + 1 + 4 + 5 + 42 + 605 + 2 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 286489476 + 42858936576 = 16926^2 + 207024^2 .

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 43145425998 and 43145426016.

It is not an unprimeable number, because it can be changed into a prime (43145426057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63427 + ... + 300522.

It is an arithmetic number, because the mean of its divisors is an integer number (1573173875).

Almost surely, 2^43145426052 is an apocalyptic number.

It is an amenable number.

43145426052 is an abundant number, since it is smaller than the sum of its proper divisors (70123092948).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

43145426052 is a wasteful number, since it uses less digits than its factorization.

43145426052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364085 (or 364080 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 36.

The spelling of 43145426052 in words is "forty-three billion, one hundred forty-five million, four hundred twenty-six thousand, fifty-two".