39963966912 has 84 divisors (see below), whose sum is σ = 115563396000. Its totient is φ = 13203412992.

The previous prime is 39963966899. The next prime is 39963966929. The reversal of 39963966912 is 21966936993.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 39963966912.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 241912 + ... + 372087.

Almost surely, 2^39963966912 is an apocalyptic number.

39963966912 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

39963966912 is an abundant number, since it is smaller than the sum of its proper divisors (75599429088).

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

39963966912 is a wasteful number, since it uses less digits than its factorization.

39963966912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 614130 (or 614117 counting only the distinct ones).

The product of its digits is 25509168, while the sum is 63.

The spelling of 39963966912 in words is "thirty-nine billion, nine hundred sixty-three million, nine hundred sixty-six thousand, nine hundred twelve".