39971614848 has 128 divisors (see below), whose sum is σ = 115902273600. Its totient is φ = 12104724480.

The previous prime is 39971614847. The next prime is 39971614873. The reversal of 39971614848 is 84841617993.

It is a tau number, because it is divible by the number of its divisors (128).

It is a junction number, because it is equal to n+sod(n) for n = 39971614791 and 39971614800.

It is not an unprimeable number, because it can be changed into a prime (39971614847) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12285990 + ... + 12289242.

Almost surely, 2^39971614848 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 39971614848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (57951136800).

39971614848 is an abundant number, since it is smaller than the sum of its proper divisors (75930658752).

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

39971614848 is a wasteful number, since it uses less digits than its factorization.

39971614848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6190 (or 6178 counting only the distinct ones).

The product of its digits is 10450944, while the sum is 60.

The spelling of 39971614848 in words is "thirty-nine billion, nine hundred seventy-one million, six hundred fourteen thousand, eight hundred forty-eight".