522468908642 has 6 divisors (see below), whose sum is σ = 783704896299. Its totient is φ = 261233943210.

The previous prime is 522468908603. The next prime is 522468908651. The reversal of 522468908642 is 246809864225.

It can be written as a sum of positive squares in only one way, i.e., 261234454321 + 261234454321 = 511111^2 + 511111^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=511111.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 766667 + ... + 1277777.

Almost surely, 2^522468908642 is an apocalyptic number.

522468908642 is a deficient number, since it is larger than the sum of its proper divisors (261235987657).

522468908642 is an frugal number, since it uses more digits than its factorization.

522468908642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1022224 (or 511113 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 56.

The spelling of 522468908642 in words is "five hundred twenty-two billion, four hundred sixty-eight million, nine hundred eight thousand, six hundred forty-two".