561885298238 has 16 divisors (see below), whose sum is σ = 919465357824. Its totient is φ = 255397772760.

The previous prime is 561885298211. The next prime is 561885298241. The reversal of 561885298238 is 832892588165.

It is a congruent number.

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, 1206131 + ... + 1605777.

It is an arithmetic number, because the mean of its divisors is an integer number (57466584864).

Almost surely, 2^561885298238 is an apocalyptic number.

561885298238 is a deficient number, since it is larger than the sum of its proper divisors (357580059586).

561885298238 is a wasteful number, since it uses less digits than its factorization.

561885298238 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 463567.

The product of its digits is 66355200, while the sum is 65.

The spelling of 561885298238 in words is "five hundred sixty-one billion, eight hundred eighty-five million, two hundred ninety-eight thousand, two hundred thirty-eight".