97778062171 has 8 divisors (see below), whose sum is σ = 98610693120. Its totient is φ = 96947155008.

The previous prime is 97778062097. The next prime is 97778062199. The reversal of 97778062171 is 17126087779.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97778062171 - 2⁹ = 97778061659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97778062771) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316891 + ... + 544036.

It is an arithmetic number, because the mean of its divisors is an integer number (12326336640).

Almost surely, 2^97778062171 is an apocalyptic number.

97778062171 is a deficient number, since it is larger than the sum of its proper divisors (832630949).

97778062171 is a wasteful number, since it uses less digits than its factorization.

97778062171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 861893.

The product of its (nonzero) digits is 2074464, while the sum is 55.

The spelling of 97778062171 in words is "ninety-seven billion, seven hundred seventy-eight million, sixty-two thousand, one hundred seventy-one".