30996998739456 has 320 divisors, whose sum is σ = 85321988733696. Its totient is φ = 9992495923200.

The previous prime is 30996998739431. The next prime is 30996998739479. The reversal of 30996998739456 is 65493789969903.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14545751511 + ... + 14545753641.

Almost surely, 2^{30996998739456} 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 30996998739456, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42660994366848).

30996998739456 is an abundant number, since it is smaller than the sum of its proper divisors (54324989994240).

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

30996998739456 is a wasteful number, since it uses less digits than its factorization.

30996998739456 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3613 (or 3597 counting only the distinct ones).

The product of its (nonzero) digits is 21427701120, while the sum is 87.

The spelling of 30996998739456 in words is "thirty trillion, nine hundred ninety-six billion, nine hundred ninety-eight million, seven hundred thirty-nine thousand, four hundred fifty-six".