It is a happy number.
It is a semiprime because it is the product of two primes.
It is a cyclic number.
It is a Duffinian number.
It is a congruent number.
Almost surely, 240737340404071 is an apocalyptic number.
40737340404071 is an equidigital number, since it uses as much as digits as its factorization.
40737340404071 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 947380009440.
Adding to 40737340404071 its reverse (17040404373704), we get a palindrome (57777744777775).
The spelling of 40737340404071 in words is "forty trillion, seven hundred thirty-seven billion, three hundred forty million, four hundred four thousand, seventy-one".