39707128080 has 60 divisors (see below), whose sum is σ = 133349774220. Its totient is φ = 10588567296.

The previous prime is 39707128061. The next prime is 39707128081. The reversal of 39707128080 is 8082170793.

It can be written as a sum of positive squares in 2 ways, for example, as 30125850624 + 9581277456 = 173568^2 + 97884^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (39707128081) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27573675 + ... + 27575114.

It is an arithmetic number, because the mean of its divisors is an integer number (2222496237).

Almost surely, 2^39707128080 is an apocalyptic number.

39707128080 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

39707128080 is an abundant number, since it is smaller than the sum of its proper divisors (93642646140).

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

39707128080 is a wasteful number, since it uses less digits than its factorization.

39707128080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55148808 (or 55148799 counting only the distinct ones).

The product of its (nonzero) digits is 169344, while the sum is 45.

The spelling of 39707128080 in words is "thirty-nine billion, seven hundred seven million, one hundred twenty-eight thousand, eighty".