70042544464640 has 648 divisors, whose sum is σ = 190783908929376. Its totient is φ = 24603892121600.

The previous prime is 70042544464609. The next prime is 70042544464661. The reversal of 70042544464640 is 4646444524007.

70042544464640 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 272539083392 + ... + 272539083648.

Almost surely, 2^{70042544464640} 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 70042544464640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95391954464688).

70042544464640 is an abundant number, since it is smaller than the sum of its proper divisors (120741364464736).

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

70042544464640 is a wasteful number, since it uses less digits than its factorization.

70042544464640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765 (or 483 counting only the distinct ones).

The product of its (nonzero) digits is 10321920, while the sum is 50.

Adding to 70042544464640 its reverse (4646444524007), we get a palindrome (74688988988647).

The spelling of 70042544464640 in words is "seventy trillion, forty-two billion, five hundred forty-four million, four hundred sixty-four thousand, six hundred forty".