4042395445902 has 64 divisors (see below), whose sum is σ = 9343913739264. Its totient is φ = 1152253117440.

The previous prime is 4042395445901. The next prime is 4042395445909. The reversal of 4042395445902 is 2095445932404.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042395445901) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 939243 + ... + 2994489.

It is an arithmetic number, because the mean of its divisors is an integer number (145998652176).

Almost surely, 2^{4042395445902} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4042395445902, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4671956869632).

4042395445902 is an abundant number, since it is smaller than the sum of its proper divisors (5301518293362).

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

4042395445902 is a wasteful number, since it uses less digits than its factorization.

4042395445902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2057033.

The product of its (nonzero) digits is 6220800, while the sum is 51.

The spelling of 4042395445902 in words is "four trillion, forty-two billion, three hundred ninety-five million, four hundred forty-five thousand, nine hundred two".