642418276441 has 8 divisors (see below), whose sum is σ = 647667720000. Its totient is φ = 637177800720.

The previous prime is 642418276393. The next prime is 642418276447. The reversal of 642418276441 is 144672814246.

642418276441 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 642418276441 - 2⁹ = 642418275929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (642418276447) 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, 2098066 + ... + 2384683.

It is an arithmetic number, because the mean of its divisors is an integer number (80958465000).

Almost surely, 2^642418276441 is an apocalyptic number.

It is an amenable number.

642418276441 is a deficient number, since it is larger than the sum of its proper divisors (5249443559).

642418276441 is a wasteful number, since it uses less digits than its factorization.

642418276441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483919.

The product of its digits is 2064384, while the sum is 49.

The spelling of 642418276441 in words is "six hundred forty-two billion, four hundred eighteen million, two hundred seventy-six thousand, four hundred forty-one".