642034511766034 has 8 divisors (see below), whose sum is σ = 965527479135180. Its totient is φ = 320192018720976.

The previous prime is 642034511765989. The next prime is 642034511766059. The reversal of 642034511766034 is 430667115430246.

It can be written as a sum of positive squares in 2 ways, for example, as 573063895195009 + 68970616571025 = 23938753^2 + 8304855^2 .

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 412618580049 + ... + 412618581604.

Almost surely, 2^{642034511766034} is an apocalyptic number.

642034511766034 is a deficient number, since it is larger than the sum of its proper divisors (323492967369146).

642034511766034 is a wasteful number, since it uses less digits than its factorization.

642034511766034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 825237162044.

The product of its (nonzero) digits is 8709120, while the sum is 52.

The spelling of 642034511766034 in words is "six hundred forty-two trillion, thirty-four billion, five hundred eleven million, seven hundred sixty-six thousand, thirty-four".