7100020128 has 48 divisors (see below), whose sum is σ = 18641974176. Its totient is φ = 2366112000.

The previous prime is 7100020087. The next prime is 7100020139. The reversal of 7100020128 is 8210200017.

It is a tau number, because it is divible by the number of its divisors (48).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 670878 + ... + 681378.

It is an arithmetic number, because the mean of its divisors is an integer number (388374462).

Almost surely, 2^7100020128 is an apocalyptic number.

It is an amenable number.

7100020128 is an abundant number, since it is smaller than the sum of its proper divisors (11541954048).

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

7100020128 is a wasteful number, since it uses less digits than its factorization.

7100020128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17557 (or 17549 counting only the distinct ones).

The product of its (nonzero) digits is 224, while the sum is 21.

The square root of 7100020128 is about 84261.6171693850. The cubic root of 7100020128 is about 1921.9991590153. Note that the first 3 decimals are identical.

The spelling of 7100020128 in words is "seven billion, one hundred million, twenty thousand, one hundred twenty-eight".