561673517350 has 24 divisors (see below), whose sum is σ = 1139686629048. Its totient is φ = 204244915200.

The previous prime is 561673517323. The next prime is 561673517359. The reversal of 561673517350 is 53715376165.

It is a junction number, because it is equal to n+sod(n) for n = 561673517294 and 561673517303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (561673517359) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 510611739 + ... + 510612838.

It is an arithmetic number, because the mean of its divisors is an integer number (47486942877).

Almost surely, 2^561673517350 is an apocalyptic number.

561673517350 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

561673517350 is an abundant number, since it is smaller than the sum of its proper divisors (578013111698).

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

561673517350 is a wasteful number, since it uses less digits than its factorization.

561673517350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1021224600 (or 1021224595 counting only the distinct ones).

The product of its (nonzero) digits is 1984500, while the sum is 49.

The spelling of 561673517350 in words is "five hundred sixty-one billion, six hundred seventy-three million, five hundred seventeen thousand, three hundred fifty".