97444650816 has 42 divisors (see below), whose sum is σ = 279307499042. Its totient is φ = 32481550080.

The previous prime is 97444650803. The next prime is 97444650833. The reversal of 97444650816 is 61805644479.

97444650816 is a `hidden beast` number, since 9 + 74 + 446 + 50 + 81 + 6 = 666.

It can be written as a sum of positive squares in only one way, i.e., 56112134400 + 41332516416 = 236880^2 + 203304^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 84586795 + ... + 84587946.

Almost surely, 2^97444650816 is an apocalyptic number.

97444650816 is a gapful number since it is divisible by the number (96) formed by its first and last digit.

It is an amenable number.

97444650816 is an abundant number, since it is smaller than the sum of its proper divisors (181862848226).

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

97444650816 is a wasteful number, since it uses less digits than its factorization.

97444650816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169174759 (or 169174746 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 97444650816 in words is "ninety-seven billion, four hundred forty-four million, six hundred fifty thousand, eight hundred sixteen".