4242040081545 has 16 divisors (see below), whose sum is σ = 7756873292160. Its totient is φ = 1939218322944.

The previous prime is 4242040081537. The next prime is 4242040081571. The reversal of 4242040081545 is 5451800402424.

It is not a de Polignac number, because 4242040081545 - 2³ = 4242040081537 is a prime.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 20200190760 + ... + 20200190969.

It is an arithmetic number, because the mean of its divisors is an integer number (484804580760).

Almost surely, 2^{4242040081545} is an apocalyptic number.

It is an amenable number.

4242040081545 is a deficient number, since it is larger than the sum of its proper divisors (3514833210615).

4242040081545 is a wasteful number, since it uses less digits than its factorization.

4242040081545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40400381744.

The product of its (nonzero) digits is 204800, while the sum is 39.

Adding to 4242040081545 its reverse (5451800402424), we get a palindrome (9693840483969).

The spelling of 4242040081545 in words is "four trillion, two hundred forty-two billion, forty million, eighty-one thousand, five hundred forty-five".