505650019742 has 48 divisors (see below), whose sum is σ = 887004299808. Its totient is φ = 215555719680.

The previous prime is 505650019711. The next prime is 505650019747. The reversal of 505650019742 is 247910056505.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 505650019693 and 505650019702.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (505650019747) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20937098 + ... + 20961234.

It is an arithmetic number, because the mean of its divisors is an integer number (18479256246).

Almost surely, 2^505650019742 is an apocalyptic number.

505650019742 is a deficient number, since it is larger than the sum of its proper divisors (381354280066).

505650019742 is a wasteful number, since it uses less digits than its factorization.

505650019742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25281 (or 25274 counting only the distinct ones).

The product of its (nonzero) digits is 378000, while the sum is 44.

The spelling of 505650019742 in words is "five hundred five billion, six hundred fifty million, nineteen thousand, seven hundred forty-two".