4042251145020 has 96 divisors (see below), whose sum is σ = 12348124217856. Its totient is φ = 979869484800.

The previous prime is 4042251144889. The next prime is 4042251145021. The reversal of 4042251145020 is 205411522404.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042251145021) 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, 9316305 + ... + 9740535.

It is an arithmetic number, because the mean of its divisors is an integer number (128626293936).

Almost surely, 2^{4042251145020} is an apocalyptic number.

It is an amenable number.

4042251145020 is an abundant number, since it is smaller than the sum of its proper divisors (8305873072836).

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

4042251145020 is a wasteful number, since it uses less digits than its factorization.

4042251145020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 438691 (or 438689 counting only the distinct ones).

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 4042251145020 its reverse (205411522404), we get a palindrome (4247662667424).

The spelling of 4042251145020 in words is "four trillion, forty-two billion, two hundred fifty-one million, one hundred forty-five thousand, twenty".