70481957728 has 192 divisors, whose sum is σ = 175325230080. Its totient is φ = 27145746432.

The previous prime is 70481957629. The next prime is 70481957747. The reversal of 70481957728 is 82775918407.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48708301 + ... + 48709747.

It is an arithmetic number, because the mean of its divisors is an integer number (913152240).

Almost surely, 2^70481957728 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 70481957728, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (87662615040).

70481957728 is an abundant number, since it is smaller than the sum of its proper divisors (104843272352).

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

70481957728 is a wasteful number, since it uses less digits than its factorization.

70481957728 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1909 (or 1901 counting only the distinct ones).

The product of its (nonzero) digits is 7902720, while the sum is 58.

The spelling of 70481957728 in words is "seventy billion, four hundred eighty-one million, nine hundred fifty-seven thousand, seven hundred twenty-eight".