939996901273920 has 672 divisors, whose sum is σ = 3654736695388800. Its totient is φ = 203533778681856.

The previous prime is 939996901273889. The next prime is 939996901273921. The reversal of 939996901273920 is 29372109699939.

It is a tau number, because it is divible by the number of its divisors (672).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (939996901273921) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 16903655076 + ... + 16903710684.

It is an arithmetic number, because the mean of its divisors is an integer number (5438596272900).

Almost surely, 2^{939996901273920} 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 939996901273920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1827368347694400).

939996901273920 is an abundant number, since it is smaller than the sum of its proper divisors (2714739794114880).

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

939996901273920 is a wasteful number, since it uses less digits than its factorization.

939996901273920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74575 (or 74558 counting only the distinct ones).

The product of its (nonzero) digits is 803538792, while the sum is 78.

The spelling of 939996901273920 in words is "nine hundred thirty-nine trillion, nine hundred ninety-six billion, nine hundred one million, two hundred seventy-three thousand, nine hundred twenty".