997098539200 has 336 divisors, whose sum is σ = 2596149264384. Its totient is φ = 376175923200.

The previous prime is 997098539167. The next prime is 997098539201. The reversal of 997098539200 is 2935890799.

It is not an unprimeable number, because it can be changed into a prime (997098539201) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 892657042 + ... + 892658158.

Almost surely, 2^997098539200 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 997098539200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1298074632192).

997098539200 is an abundant number, since it is smaller than the sum of its proper divisors (1599050725184).

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

997098539200 is a wasteful number, since it uses less digits than its factorization.

997098539200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480 (or 1465 counting only the distinct ones).

The product of its (nonzero) digits is 11022480, while the sum is 61.

The spelling of 997098539200 in words is "nine hundred ninety-seven billion, ninety-eight million, five hundred thirty-nine thousand, two hundred".