70072347140 has 72 divisors (see below), whose sum is σ = 151816643160. Its totient is φ = 27167706432.

The previous prime is 70072347119. The next prime is 70072347181. The reversal of 70072347140 is 4174327007.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 23108256196 + 46964090944 = 152014^2 + 216712^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 70072347140.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 266434649 + ... + 266434911.

Almost surely, 2^70072347140 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 70072347140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75908321580).

70072347140 is an abundant number, since it is smaller than the sum of its proper divisors (81744296020).

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

70072347140 is an frugal number, since it uses more digits than its factorization.

70072347140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 646 (or 307 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 35.

The spelling of 70072347140 in words is "seventy billion, seventy-two million, three hundred forty-seven thousand, one hundred forty".