673571734242 has 64 divisors (see below), whose sum is σ = 1511056093824. Its totient is φ = 198369008640.

The previous prime is 673571734207. The next prime is 673571734243. The reversal of 673571734242 is 242437175376.

It is not an unprimeable number, because it can be changed into a prime (673571734243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1984378 + ... + 2298890.

It is an arithmetic number, because the mean of its divisors is an integer number (23610251466).

Almost surely, 2^673571734242 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 673571734242, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (755528046912).

673571734242 is an abundant number, since it is smaller than the sum of its proper divisors (837484359582).

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

673571734242 is a wasteful number, since it uses less digits than its factorization.

673571734242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315443.

The product of its digits is 5927040, while the sum is 51.

The spelling of 673571734242 in words is "six hundred seventy-three billion, five hundred seventy-one million, seven hundred thirty-four thousand, two hundred forty-two".