252452661808 has 10 divisors (see below), whose sum is σ = 489127032284. Its totient is φ = 126226330896.

The previous prime is 252452661779. The next prime is 252452661841. The reversal of 252452661808 is 808166254252.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7889145666 + ... + 7889145697.

Almost surely, 2^252452661808 is an apocalyptic number.

It is an amenable number.

252452661808 is a deficient number, since it is larger than the sum of its proper divisors (236674370476).

252452661808 is a wasteful number, since it uses less digits than its factorization.

252452661808 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15778291371 (or 15778291365 counting only the distinct ones).

The product of its (nonzero) digits is 1843200, while the sum is 49.

The spelling of 252452661808 in words is "two hundred fifty-two billion, four hundred fifty-two million, six hundred sixty-one thousand, eight hundred eight".