97259197779 has 24 divisors (see below), whose sum is σ = 150555573792. Its totient is φ = 60344127360.

The previous prime is 97259197771. The next prime is 97259197817. The reversal of 97259197779 is 97779195279.

It is not a de Polignac number, because 97259197779 - 2³ = 97259197771 is a prime.

It is a super-2 number, since 2×97259197779² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (97259197771) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6341682 + ... + 6356999.

It is an arithmetic number, because the mean of its divisors is an integer number (6273148908).

Almost surely, 2^97259197779 is an apocalyptic number.

97259197779 is a deficient number, since it is larger than the sum of its proper divisors (53296376013).

97259197779 is a wasteful number, since it uses less digits than its factorization.

97259197779 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12698747 (or 12698744 counting only the distinct ones).

The product of its digits is 157529610, while the sum is 72.

The spelling of 97259197779 in words is "ninety-seven billion, two hundred fifty-nine million, one hundred ninety-seven thousand, seven hundred seventy-nine".