3205142237538 has 24 divisors (see below), whose sum is σ = 7183939499100. Its totient is φ = 1031540030304.

The previous prime is 3205142237491. The next prime is 3205142237569. The reversal of 3205142237538 is 8357322415023.

It is a happy number.

3205142237538 is a `hidden beast` number, since 3 + 2 + 0 + 51 + 42 + 23 + 7 + 538 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 3184629409809 + 20512827729 = 1784553^2 + 143223^2 .

It is a junction number, because it is equal to n+sod(n) for n = 3205142237493 and 3205142237502.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 3070059093 + ... + 3070060136.

Almost surely, 2^{3205142237538} is an apocalyptic number.

3205142237538 is an abundant number, since it is smaller than the sum of its proper divisors (3978797261562).

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

3205142237538 is a wasteful number, since it uses less digits than its factorization.

3205142237538 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6140119266 (or 6140119263 counting only the distinct ones).

The product of its (nonzero) digits is 1209600, while the sum is 45.

The spelling of 3205142237538 in words is "three trillion, two hundred five billion, one hundred forty-two million, two hundred thirty-seven thousand, five hundred thirty-eight".