997525461792 has 192 divisors, whose sum is σ = 2758406482944. Its totient is φ = 315225538560.

The previous prime is 997525461787. The next prime is 997525461799. The reversal of 997525461792 is 297164525799.

It is not an unprimeable number, because it can be changed into a prime (997525461799) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 125676448 + ... + 125684384.

It is an arithmetic number, because the mean of its divisors is an integer number (14366700432).

Almost surely, 2^997525461792 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 997525461792, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1379203241472).

997525461792 is an abundant number, since it is smaller than the sum of its proper divisors (1760881021152).

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

997525461792 is a wasteful number, since it uses less digits than its factorization.

997525461792 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8891 (or 8883 counting only the distinct ones).

The product of its digits is 85730400, while the sum is 66.

The spelling of 997525461792 in words is "nine hundred ninety-seven billion, five hundred twenty-five million, four hundred sixty-one thousand, seven hundred ninety-two".