4042462064640 has 104 divisors (see below), whose sum is σ = 12934299716688. Its totient is φ = 1077989867520.

The previous prime is 4042462064639. The next prime is 4042462064647. The reversal of 4042462064640 is 464602642404.

It is a junction number, because it is equal to n+sod(n) for n = 4042462064592 and 4042462064601.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4042462064647) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32836201 + ... + 32959080.

Almost surely, 2^{4042462064640} is an apocalyptic number.

4042462064640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4042462064640 is an abundant number, since it is smaller than the sum of its proper divisors (8891837652048).

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

4042462064640 is an equidigital number, since it uses as much as digits as its factorization.

4042462064640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65795313 (or 65795291 counting only the distinct ones).

The product of its (nonzero) digits is 884736, while the sum is 42.

The spelling of 4042462064640 in words is "four trillion, forty-two billion, four hundred sixty-two million, sixty-four thousand, six hundred forty".