39728371712 has 48 divisors (see below), whose sum is σ = 81584455680. Its totient is φ = 19327279104.

The previous prime is 39728371693. The next prime is 39728371717. The reversal of 39728371712 is 21717382793.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39728371717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 186368 + ... + 337919.

It is an arithmetic number, because the mean of its divisors is an integer number (1699676160).

Almost surely, 2^39728371712 is an apocalyptic number.

39728371712 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

39728371712 is an abundant number, since it is smaller than the sum of its proper divisors (41856083968).

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

39728371712 is an equidigital number, since it uses as much as digits as its factorization.

39728371712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524346 (or 524326 counting only the distinct ones).

The product of its digits is 889056, while the sum is 50.

The spelling of 39728371712 in words is "thirty-nine billion, seven hundred twenty-eight million, three hundred seventy-one thousand, seven hundred twelve".