97000000000 has 200 divisors, whose sum is σ = 244760717124. Its totient is φ = 38400000000.

The previous prime is 96999999997. The next prime is 97000000037. The reversal of 97000000000 is 79.

It is a happy number.

It can be written as a sum of positive squares in 10 ways, for example, as 60154429696 + 36845570304 = 245264^2 + 191952^2 .

It is a tau number, because it is divible by the number of its divisors (200).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a nialpdrome in base 10.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 999999952 + ... + 1000000048.

Almost surely, 2^97000000000 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 97000000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122380358562).

97000000000 is an abundant number, since it is smaller than the sum of its proper divisors (147760717124).

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

97000000000 is an frugal number, since it uses more digits than its factorization.

97000000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 160 (or 104 counting only the distinct ones).

The product of its (nonzero) digits is 63, while the sum is 16.

Adding to 97000000000 its reverse (79), we get a palindrome (97000000079).

The spelling of 97000000000 in words is "ninety-seven billion", and thus it is an aban number and an uban number.