642041140246 has 48 divisors (see below), whose sum is σ = 1085096587680. Its totient is φ = 284533603200.

The previous prime is 642041140243. The next prime is 642041140267.

642041140246 is nontrivially palindromic in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642041140243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15825175 + ... + 15865693.

It is an arithmetic number, because the mean of its divisors is an integer number (22606178910).

Almost surely, 2^642041140246 is an apocalyptic number.

642041140246 is a deficient number, since it is larger than the sum of its proper divisors (443055447434).

642041140246 is a wasteful number, since it uses less digits than its factorization.

642041140246 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42181 (or 42170 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 34.

It can be divided in two parts, 642041 and 140246, that added together give a palindrome (782287).

The spelling of 642041140246 in words is "six hundred forty-two billion, forty-one million, one hundred forty thousand, two hundred forty-six".