742065387216 has 80 divisors (see below), whose sum is σ = 1981085583360. Its totient is φ = 239104414080.

The previous prime is 742065387187. The next prime is 742065387257. The reversal of 742065387216 is 612783560247.

It is a happy number.

It is a super-2 number, since 2×742065387216² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1031515 + ... + 1596293.

It is an arithmetic number, because the mean of its divisors is an integer number (24763569792).

Almost surely, 2^742065387216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 742065387216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (990542791680).

742065387216 is an abundant number, since it is smaller than the sum of its proper divisors (1239020196144).

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

742065387216 is a wasteful number, since it uses less digits than its factorization.

742065387216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565704 (or 565698 counting only the distinct ones).

The product of its (nonzero) digits is 3386880, while the sum is 51.

The spelling of 742065387216 in words is "seven hundred forty-two billion, sixty-five million, three hundred eighty-seven thousand, two hundred sixteen".