642026063887 has 8 divisors (see below), whose sum is σ = 703131544080. Its totient is φ = 582594706560.

The previous prime is 642026063869. The next prime is 642026063891. The reversal of 642026063887 is 788360620246.

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 642026063887 - 2²⁷ = 641891846159 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 (642026063837) 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, 418529914 + ... + 418531447.

It is an arithmetic number, because the mean of its divisors is an integer number (87891443010).

Almost surely, 2^642026063887 is an apocalyptic number.

642026063887 is a deficient number, since it is larger than the sum of its proper divisors (61105480193).

642026063887 is a wasteful number, since it uses less digits than its factorization.

642026063887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 837061433.

The product of its (nonzero) digits is 4644864, while the sum is 52.

The spelling of 642026063887 in words is "six hundred forty-two billion, twenty-six million, sixty-three thousand, eight hundred eighty-seven".