97031557936 has 160 divisors (see below), whose sum is σ = 203258419200. Its totient is φ = 44795013120.

The previous prime is 97031557933. The next prime is 97031557981. The reversal of 97031557936 is 63975513079.

It is a happy number.

97031557936 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (97031557933) 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, 156755035 + ... + 156755653.

It is an arithmetic number, because the mean of its divisors is an integer number (1270365120).

Almost surely, 2^97031557936 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 97031557936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101629209600).

97031557936 is an abundant number, since it is smaller than the sum of its proper divisors (106226861264).

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

97031557936 is a wasteful number, since it uses less digits than its factorization.

97031557936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 867 (or 861 counting only the distinct ones).

The product of its (nonzero) digits is 5358150, while the sum is 55.

The spelling of 97031557936 in words is "ninety-seven billion, thirty-one million, five hundred fifty-seven thousand, nine hundred thirty-six".