97949796784 has 80 divisors (see below), whose sum is σ = 237055113216. Its totient is φ = 38234649600.

The previous prime is 97949796781. The next prime is 97949796817. The reversal of 97949796784 is 48769794979.

It is not an unprimeable number, because it can be changed into a prime (97949796781) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 770722 + ... + 888769.

Almost surely, 2^97949796784 is an apocalyptic number.

It is an amenable number.

97949796784 is an abundant number, since it is smaller than the sum of its proper divisors (139105316432).

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

97949796784 is a wasteful number, since it uses less digits than its factorization.

97949796784 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1659554 (or 1659548 counting only the distinct ones).

The product of its digits is 1728324864, while the sum is 79.

The spelling of 97949796784 in words is "ninety-seven billion, nine hundred forty-nine million, seven hundred ninety-six thousand, seven hundred eighty-four".