97600007778 has 64 divisors (see below), whose sum is σ = 243832028160. Its totient is φ = 25356462912.

The previous prime is 97600007753. The next prime is 97600007797. The reversal of 97600007778 is 87770000679.

It is a self number, because there is not a number n which added to its sum of digits gives 97600007778.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1297408 + ... + 1370571.

It is an arithmetic number, because the mean of its divisors is an integer number (3809875440).

Almost surely, 2^97600007778 is an apocalyptic number.

97600007778 is an abundant number, since it is smaller than the sum of its proper divisors (146232020382).

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

97600007778 is a wasteful number, since it uses less digits than its factorization.

97600007778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2668071.

The product of its (nonzero) digits is 1037232, while the sum is 51.

The spelling of 97600007778 in words is "ninety-seven billion, six hundred million, seven thousand, seven hundred seventy-eight".