642453160534 has 8 divisors (see below), whose sum is σ = 963893288520. Its totient is φ = 321155397696.

The previous prime is 642453160529. The next prime is 642453160543. The reversal of 642453160534 is 435061354246.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35580004 + ... + 35598055.

It is an arithmetic number, because the mean of its divisors is an integer number (120486661065).

Almost surely, 2^642453160534 is an apocalyptic number.

642453160534 is a deficient number, since it is larger than the sum of its proper divisors (321440127986).

642453160534 is a wasteful number, since it uses less digits than its factorization.

642453160534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71182574.

The product of its (nonzero) digits is 1036800, while the sum is 43.

The spelling of 642453160534 in words is "six hundred forty-two billion, four hundred fifty-three million, one hundred sixty thousand, five hundred thirty-four".