642330534049 has 8 divisors (see below), whose sum is σ = 646298233632. Its totient is φ = 638363164320.

The previous prime is 642330533993. The next prime is 642330534119. The reversal of 642330534049 is 940435033246.

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 642330534049 - 2¹¹ = 642330532001 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 642330533996 and 642330534014.

It is not an unprimeable number, because it can be changed into a prime (642330534749) 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, 4664514 + ... + 4800244.

It is an arithmetic number, because the mean of its divisors is an integer number (80787279204).

Almost surely, 2^642330534049 is an apocalyptic number.

It is an amenable number.

642330534049 is a deficient number, since it is larger than the sum of its proper divisors (3967699583).

642330534049 is a wasteful number, since it uses less digits than its factorization.

642330534049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164927.

The product of its (nonzero) digits is 933120, while the sum is 43.

The spelling of 642330534049 in words is "six hundred forty-two billion, three hundred thirty million, five hundred thirty-four thousand, forty-nine".