97732797156 has 192 divisors, whose sum is σ = 277401600000. Its totient is φ = 29622827520.

The previous prime is 97732797131. The next prime is 97732797161. The reversal of 97732797156 is 65179723779.

97732797156 is a `hidden beast` number, since 9 + 77 + 327 + 97 + 156 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 97732797093 and 97732797102.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 48889845 + ... + 48891843.

It is an arithmetic number, because the mean of its divisors is an integer number (1444800000).

Almost surely, 2^97732797156 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 97732797156, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (138700800000).

97732797156 is an abundant number, since it is smaller than the sum of its proper divisors (179668802844).

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

97732797156 is a wasteful number, since it uses less digits than its factorization.

97732797156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2919 (or 2911 counting only the distinct ones).

The product of its digits is 35006580, while the sum is 63.

The spelling of 97732797156 in words is "ninety-seven billion, seven hundred thirty-two million, seven hundred ninety-seven thousand, one hundred fifty-six".