642826301039 has 8 divisors (see below), whose sum is σ = 695861395152. Its totient is φ = 590303623680.

The previous prime is 642826300981. The next prime is 642826301101. The reversal of 642826301039 is 930103628246.

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 642826301039 - 2²⁰ = 642825252463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (642826301339) 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, 128101577 + ... + 128106594.

It is an arithmetic number, because the mean of its divisors is an integer number (86982674394).

Almost surely, 2^642826301039 is an apocalyptic number.

642826301039 is a deficient number, since it is larger than the sum of its proper divisors (53035094113).

642826301039 is a wasteful number, since it uses less digits than its factorization.

642826301039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 256208377.

The product of its (nonzero) digits is 373248, while the sum is 44.

The spelling of 642826301039 in words is "six hundred forty-two billion, eight hundred twenty-six million, three hundred one thousand, thirty-nine".