993397737280 has 336 divisors, whose sum is σ = 2629090341504. Its totient is φ = 357166817280.

The previous prime is 993397737247. The next prime is 993397737301. The reversal of 993397737280 is 82737793399.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1467352302 + ... + 1467352978.

Almost surely, 2^993397737280 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 993397737280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1314545170752).

993397737280 is an abundant number, since it is smaller than the sum of its proper divisors (1635692604224).

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

993397737280 is a wasteful number, since it uses less digits than its factorization.

993397737280 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1394 (or 1371 counting only the distinct ones).

The product of its (nonzero) digits is 108020304, while the sum is 67.

The spelling of 993397737280 in words is "nine hundred ninety-three billion, three hundred ninety-seven million, seven hundred thirty-seven thousand, two hundred eighty".