97179494893 has 24 divisors (see below), whose sum is σ = 106679154600. Its totient is φ = 88473775104.

The previous prime is 97179494851. The next prime is 97179494933. The reversal of 97179494893 is 39849497179.

It can be written as a sum of positive squares in 12 ways, for example, as 29777988969 + 67401505924 = 172563^2 + 259618^2 .

It is not a de Polignac number, because 97179494893 - 2²¹ = 97177397741 is a prime.

It is a super-2 number, since 2×97179494893² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97179494813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6143871 + ... + 6159667.

It is an arithmetic number, because the mean of its divisors is an integer number (4444964775).

Almost surely, 2^97179494893 is an apocalyptic number.

It is an amenable number.

97179494893 is a deficient number, since it is larger than the sum of its proper divisors (9499659707).

97179494893 is a wasteful number, since it uses less digits than its factorization.

97179494893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16321 (or 16308 counting only the distinct ones).

The product of its digits is 123451776, while the sum is 70.

The spelling of 97179494893 in words is "ninety-seven billion, one hundred seventy-nine million, four hundred ninety-four thousand, eight hundred ninety-three".