39974965576 has 96 divisors (see below), whose sum is σ = 94371480000. Its totient is φ = 15734404224.

The previous prime is 39974965573. The next prime is 39974965577. The reversal of 39974965576 is 67556947993.

It is not an unprimeable number, because it can be changed into a prime (39974965573) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 994395 + ... + 1033813.

It is an arithmetic number, because the mean of its divisors is an integer number (983036250).

Almost surely, 2^39974965576 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 39974965576, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47185740000).

39974965576 is an abundant number, since it is smaller than the sum of its proper divisors (54396514424).

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

39974965576 is a wasteful number, since it uses less digits than its factorization.

39974965576 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39651 (or 39640 counting only the distinct ones).

The product of its digits is 385786800, while the sum is 70.

The spelling of 39974965576 in words is "thirty-nine billion, nine hundred seventy-four million, nine hundred sixty-five thousand, five hundred seventy-six".