97909780344 has 32 divisors (see below), whose sum is σ = 245372946000. Its totient is φ = 32556794112.

The previous prime is 97909780313. The next prime is 97909780349. The reversal of 97909780344 is 44308790979.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97909780349) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4977439 + ... + 4997070.

Almost surely, 2^97909780344 is an apocalyptic number.

It is an amenable number.

97909780344 is an abundant number, since it is smaller than the sum of its proper divisors (147463165656).

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

97909780344 is a wasteful number, since it uses less digits than its factorization.

97909780344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9974927 (or 9974923 counting only the distinct ones).

The product of its (nonzero) digits is 13716864, while the sum is 60.

The spelling of 97909780344 in words is "ninety-seven billion, nine hundred nine million, seven hundred eighty thousand, three hundred forty-four".