70072141728 has 24 divisors (see below), whose sum is σ = 183939372288. Its totient is φ = 23357380544.

The previous prime is 70072141717. The next prime is 70072141771. The reversal of 70072141728 is 82714127007.

It is a tau number, because it is divible by the number of its divisors (24).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364958976 + ... + 364959167.

It is an arithmetic number, because the mean of its divisors is an integer number (7664140512).

Almost surely, 2^70072141728 is an apocalyptic number.

It is an amenable number.

70072141728 is an abundant number, since it is smaller than the sum of its proper divisors (113867230560).

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

70072141728 is a wasteful number, since it uses less digits than its factorization.

70072141728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 729918156 (or 729918148 counting only the distinct ones).

The product of its (nonzero) digits is 43904, while the sum is 39.

The spelling of 70072141728 in words is "seventy billion, seventy-two million, one hundred forty-one thousand, seven hundred twenty-eight".