642465014284 has 12 divisors (see below), whose sum is σ = 1128314893608. Its totient is φ = 320089330400.

The previous prime is 642465014281. The next prime is 642465014297. The reversal of 642465014284 is 482410564246.

It is a super-2 number, since 2×642465014284² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (642465014281) by changing a digit.

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, 285792922 + ... + 285795169.

It is an arithmetic number, because the mean of its divisors is an integer number (94026241134).

Almost surely, 2^642465014284 is an apocalyptic number.

It is an amenable number.

642465014284 is a deficient number, since it is larger than the sum of its proper divisors (485849879324).

642465014284 is a wasteful number, since it uses less digits than its factorization.

642465014284 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571588376 (or 571588374 counting only the distinct ones).

The product of its (nonzero) digits is 1474560, while the sum is 46.

The spelling of 642465014284 in words is "six hundred forty-two billion, four hundred sixty-five million, fourteen thousand, two hundred eighty-four".