39647938560 has 576 divisors, whose sum is σ = 140532537600. Its totient is φ = 9507962880.

The previous prime is 39647938549. The next prime is 39647938573. The reversal of 39647938560 is 6583974693.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is a junction number, because it is equal to n+sod(n) for n = 39647938494 and 39647938503.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 501872601 + ... + 501872679.

It is an arithmetic number, because the mean of its divisors is an integer number (243980100).

Almost surely, 2^39647938560 is an apocalyptic number.

39647938560 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 39647938560, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70266268800).

39647938560 is an abundant number, since it is smaller than the sum of its proper divisors (100884599040).

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

39647938560 is a wasteful number, since it uses less digits than its factorization.

39647938560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188 (or 137 counting only the distinct ones).

The product of its (nonzero) digits is 29393280, while the sum is 60.

The spelling of 39647938560 in words is "thirty-nine billion, six hundred forty-seven million, nine hundred thirty-eight thousand, five hundred sixty".