202581968508842 has 16 divisors (see below), whose sum is σ = 327277090157472. Its totient is φ = 93491000117040.

The previous prime is 202581968508769. The next prime is 202581968508893. The reversal of 202581968508842 is 248805869185202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 348452468 + ... + 349033359.

It is an arithmetic number, because the mean of its divisors is an integer number (20454818134842).

Almost surely, 2^{202581968508842} is an apocalyptic number.

202581968508842 is a deficient number, since it is larger than the sum of its proper divisors (124695121648630).

202581968508842 is a wasteful number, since it uses less digits than its factorization.

202581968508842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 697497013.

The product of its (nonzero) digits is 176947200, while the sum is 68.

The spelling of 202581968508842 in words is "two hundred two trillion, five hundred eighty-one billion, nine hundred sixty-eight million, five hundred eight thousand, eight hundred forty-two".