561610263234 has 64 divisors (see below), whose sum is σ = 1171099238400. Its totient is φ = 179327034432.

The previous prime is 561610263217. The next prime is 561610263289. The reversal of 561610263234 is 432362016165.

It is a junction number, because it is equal to n+sod(n) for n = 561610263192 and 561610263201.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40214337 + ... + 40228299.

It is an arithmetic number, because the mean of its divisors is an integer number (18298425600).

Almost surely, 2^561610263234 is an apocalyptic number.

561610263234 is an abundant number, since it is smaller than the sum of its proper divisors (609488975166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

561610263234 is a wasteful number, since it uses less digits than its factorization.

561610263234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15799.

The product of its (nonzero) digits is 155520, while the sum is 39.

Adding to 561610263234 its reverse (432362016165), we get a palindrome (993972279399).

The spelling of 561610263234 in words is "five hundred sixty-one billion, six hundred ten million, two hundred sixty-three thousand, two hundred thirty-four".