39903393631680 has 280 divisors, whose sum is σ = 142247381644368. Its totient is φ = 10618116083712.

The previous prime is 39903393631613. The next prime is 39903393631697. The reversal of 39903393631680 is 8613639330993.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 10456372 + ... + 13752908.

Almost surely, 2^{39903393631680} is an apocalyptic number.

39903393631680 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 39903393631680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (71123690822184).

39903393631680 is an abundant number, since it is smaller than the sum of its proper divisors (102343988012688).

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

39903393631680 is a wasteful number, since it uses less digits than its factorization.

39903393631680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3297033 (or 3297014 counting only the distinct ones).

The product of its (nonzero) digits is 51018336, while the sum is 63.

The spelling of 39903393631680 in words is "thirty-nine trillion, nine hundred three billion, three hundred ninety-three million, six hundred thirty-one thousand, six hundred eighty".